Of all the virtues, strength is the one the saints most lived before defining it, through the fire of persecution, on the battlefields of the soul, in the long patience of the sick and cloistered. The word first evokes the martyr who does not bend before the executioner; but the saints made it something far broader: the virtue that upholds all the others, the “steadfastness of the soul” that enables daring great things for God and bearing the hardest trials without collapsing. Christ did not promise His disciples to avoid trials; He promised to carry them through: “In the world you have suffering, but take heart! I am the conqueror of the world” (John 16:33)[2].
This article does not seek to provide a method but to let the saints’ own voices be heard: what they wrote, preached, and above all lived regarding strength. You will encounter heroes of the Old Testament and the mother of the seven Maccabees; Christ and Saint Paul, the herald of strength; the Fathers and Doctors who precisely defined it, Augustine, Ambrose, Thomas Aquinas; the long line of martyrs, from Ignatius of Antioch to Saint Blandina of Lyon; then Saint Joan of Arc, Saint Teresa of Avila with her “determined” soul, Saint Thérèse of Lisieux who felt called to be a warrior, and the mystics. All say, in their own way, the same thing: true strength is not hardness or violence, but a peaceful steadfastness rooted in God, and it unfolds especially where man discovers his weakness.
A thread runs through all these testimonies. The strength of the saints is never the self-confidence of the strong in this world: it is the strength “in him who gives me strength”, the one that “is made perfect in weakness”[3][4]. And its highest act is not to attack, but to hold firm, to endure without yielding, even to martyrdom if necessary. This is what the saints repeat in a thousand forms, and what this article gathers.
For the practical path, by what concrete means strength grows in us, its two counterfeits (cowardice and recklessness), and its fruits, see the article How to Grow in Strength. This article is its counterpart: no longer the method, but the living word of the saints.
“Be Strong and Courageous”: Why the Saints Spoke So Much About Strength
Before listening to each saint, one must understand why this theme so often recurs in their writings. Three reasons intersect: a unique place in the structure of the virtues, the combatant condition of every Christian life, and a word from God repeatedly addressed to His friends: “Do not be afraid.”
A Cardinal Virtue, Root and Support of All the Others
Strength is not just one quality among others: it is one of the four cardinal virtues, those “hinges” (cardo) on which all moral life pivots. Scripture itself enumerates them:
“The labors of Wisdom produce the virtues: she teaches temperance and prudence, justice and strength of soul, and nothing is more useful to men in life.”
Book of Wisdom 8:7[5]
The saints saw in it the virtue that makes the others practicable. What use is it to know the good (prudence), to will it for others (justice), to moderate one’s desires (temperance), if one lacks the strength to persevere when it costs? “Strength is the moral virtue that ensures firmness and perseverance in the pursuit of the good amid difficulties,” the Catechism summarizes; it “makes one capable of overcoming fear, even the fear of death”[6]. Without it, the other virtues remain intentions. That is why one may say, by way of synthesis of the saints’ teaching, that it is like the guardian of the other virtues: it does not do good in their place, but it prevents fear from causing their abandonment.
Courage, the Condition of Every Christian Battle
If the saints insist so much, it is because they know from experience that the Christian life is a battle. Saint Paul fixed the image forever:
“Finally, draw your strength from the Lord and from the vigor of His strength. Put on the battle equipment given by God so that you can stand against the devil’s schemes.”
Letter to the Ephesians 6:10-11[7]
The Catechism repeats it without softening: “There is no holiness without renunciation and spiritual combat”[8]. And where there is combat, there is need for strength, not to strike, but to hold the assigned post. The saints did not seek out trials; they prepared for them, knowing that courage for hard days is stored up in easy ones.
“Do Not Be Afraid”: The Word God Repeats to His Friends
A word God often addresses to His elect throughout Scripture is an invitation to strength: “Do not fear.” He says it to Abraham, to Joshua, to the prophets, to Mary, to the Apostles. To Joshua entering the Promised Land:
“Did I not command you: ‘Be strong and courageous!’? Do not fear, do not be dismayed, for the Lord your God will be with you wherever you go.”
Book of Joshua 1:9[9]
All the strength of the saints lies in the end of the verse: “for the Lord your God is with you.” Their courage is never bravado: it is the consequence of a presence. That is why the psalmist can sing without arrogance: “The Lord is my light and my salvation; whom shall I fear?”[10]. Saint John Paul II only echoed this biblical cry at the dawn of his pontificate: “Do not be afraid! Open wide the doors to Christ!”[11]
Strength, Courage, Valor, Fortitude: What the Saints Mean
A word of caution on vocabulary, for the saints use related terms. Strength (Latin fortitudo) is the proper name of the cardinal virtue; courage designates the impulse that faces danger; valor or “manliness” (Vulgate: viriliter agite, “act like men,” 1 Corinthians 16:13) emphasizes firmness; endurance (Greek hypomonè) names the deepest act: holding firm under prolonged trial. All these words describe one reality, a firm will in the good, unshaken by anything, but they highlight different facets. Saint Augustine unified them in a surprising definition: strength, he said, is ultimately a form of love.
Strength in the Voice of Scripture, the First School of the Saints
The saints did not invent fortitude: they learned it from Scripture, which they meditated on day and night. Before becoming their teachers, the biblical figures of valor were their models. Three sources especially nourished them: the heroes of the Old Covenant, Christ, and Saint Paul.
The Heroes of the Old Covenant: Strength That Comes from Faith
The Old Testament abounds with figures of courage: David unarmed before Goliath, Judith, Daniel in the lions’ den, the three young men in the furnace. The saints meditated on them all. But they noticed a common trait: their strength never comes from their own power, but from their faith. David says to Goliath: “You come against me with sword, spear, and javelin, but I come against you in the name of the Lord of hosts” (1 Sam 17:45). The Letter to the Hebrews lists these valiant ones: “Through faith they conquered kingdoms… recovered strength after illness, proved courageous in battle” (Heb 11:33-34): their strength is an effect of their faith.
The First Martyrs: The Mother and the Seven Maccabee Sons
Even before Christ, the Old Testament offers the first great account of martyrdom for fidelity to God: the mother and her seven sons, tortured under Antiochus for refusing to transgress the Law. The saints saw in them the archetype of enduring strength and hope in the resurrection. The mother, seeing her seven sons die in one day, “endured it valiantly because she had placed her hope in the Lord”:
“I am unable to say how you were formed in my womb. It was not I who gave you spirit and life [...] It is the Creator of the world [...] who [...] will give you back spirit and life, because, for the love of His laws, you now despise your own existence.”
Second Book of the Maccabees 7:22-23[12]
The second son, dying, cries out to the tyrant the very cry that sums up all the strength of martyrs: “since we die in faithfulness to His laws, the King of the world will raise us up to eternal life” (2 Maccabees 7:9). The saints understood that the supreme strength is not to kill for a cause, but to accept death for God, in the certainty of the resurrection.
Christ: “Take Heart, I Am the Conqueror of the World”
The absolute model of strength for all the saints is Christ, not first in His miracles, but in His endured Passion. He first teaches not to confuse true danger with false danger:
“Do not fear those who kill the body without being able to kill the soul; rather fear Him who can destroy both soul and body in hell.”
Gospel according to Saint Matthew 10:28[13]
Then, on the threshold of His Passion, He gives the words from which the saints drew their courage in the darkest hours:
“In the world you have suffering, but take heart! I am the conqueror of the world.”
Gospel according to Saint John 16:33[14]
The Christian’s strength is therefore not to conquer the world by himself, but to unite with Him who has already conquered it. The Letter to the Hebrews shows Christ enduring the Cross: “renouncing the joy set before Him, He endured the cross, despising the shame of that torment”[15]: the supreme model of strength that endures, not through insensitivity, but through love.
Saint Paul, the Herald of Strength
No New Testament author spoke of strength like Saint Paul, who lived it through shipwrecks, imprisonments, and beatings. His exhortations have become the breviary of all the saints. He commands valor:
“Be watchful, stand firm in the faith, be courageous, be strong.”
First Letter to the Corinthians 16:13[16]
But he immediately reveals its secret, which overturns all human ideas of strength. Having pleaded three times to be delivered from his “thorn in the flesh,” he receives this answer:
“My grace is sufficient for you, for my power is made perfect in weakness. […] For when I am weak, then I am strong.”
Second Letter to the Corinthians 12:9-10[17]
This is the great lesson all the saints will echo: Christian strength is not opposed to weakness, it unfolds within it. Hence the cry of trust, written from prison:
“I can do all things through Him who gives me strength.”
Letter to the Philippians 4:13[18]
The Fathers and Doctors: Defining What Martyrs Lived
While the martyrs lived fortitude, the Fathers and Doctors undertook to reflect on it. They took up the notion from the philosophers (Plato, Aristotle, and Cicero already ranked fortitudo among the four virtues), but they transfigured it: true fortitude is no longer the bravery of the warrior, it is the love of God carried to its fullest.
Saint Augustine: Fortitude Is Love That Endures All Things for God
It is Saint Augustine who gave fortitude the deepest and most unexpected definition in the entire tradition. Seeking what unifies the four cardinal virtues, he answers: they are only four forms of the same love of God. Fortitude is one of them:
“Fortitude is love easily enduring all things for the sake of God.”
Saint Augustine, On the Morals of the Catholic Church, I, 15, 25[19]
This shift is decisive for understanding all the saints who follow. If fortitude is a form of love, then the most loving is the strongest, and the martyr is not a stoic hero, but a lover whom nothing separates from the beloved. “Who shall separate us from the love of Christ?” (Rom 8:35), Saint Paul already asked.
Saint Ambrose and the Christianization of the Cardinal Virtues
It was Saint Ambrose of Milan, master of Saint Augustine, who introduced the four cardinal virtues into the Christian tradition by composing, modeled on Cicero, his treatise On Duties (De officiis ministrorum). There he shows that true fortitude is not that of weapons: “better is he who contains his anger than he who takes a city, for anger deceives even the strong,” he writes, citing Proverbs (Pr 16:32)[20]. The Christian’s fortitude is first and foremost a victory over self, and it is inseparable from justice, without which it would be mere violence. Ambrose thus roots the ancient virtue in the Gospel: courage is Christian only if it serves the good.
Saint Thomas Aquinas: Facing and Enduring
The Doctor who analyzed fortitude most precisely is Saint Thomas Aquinas, who devotes an entire series of questions in the Summa Theologica (II-II, q. 123-140) to it. He distinguishes two acts in fortitude: “to face” (aggredi) danger, and “to endure” (sustinere) what cannot be avoided. And he establishes a crucial point, which all spiritual masters will reprise: of the two, endurance is the greater.
“The principal act of fortitude is to endure, that is, to remain steadfast in dangers rather than to attack.”
Saint Thomas Aquinas, Summa Theologica, II-II, q. 123, a. 6[21]
| The Two Acts of Fortitude According to Saint Thomas | Aggredi: to face | Sustinere: to endure |
|---|---|---|
| Gesture | Going toward danger, daring | Holding firm under assault, not yielding |
| Related virtues | Magnanimity, magnificence | Patience, perseverance |
| Difficulty | A brief, decisive impulse | Prolonged effort over time |
| Rank | Secondary act | Principal act (a. 6) |
| Summit | Not applicable | Martyrdom (q. 124) |
Why does endurance prevail? Saint Thomas gives three reasons: the one who endures suffers the assault of one stronger than himself, while the attacker himself acts from a position of strength; the one who endures already feels dangers as imminent, while the attacker sees them only as to come, yet it is harder not to be shaken by the present than by the future; and enduring extends over duration, while attacking may spring from a sudden impulse[22]. This is the realism of spiritual life: most of our battles are not won by a brilliant stroke, but by a lasting fidelity.
Saint Thomas: Martyrdom, the Act of Fortitude That Most Shows Charity
From this follows, for Saint Thomas, the unique greatness of martyrdom. Article 2 establishes that martyrdom is an act of fortitude; and article 3 specifies: taken in its species, it cannot be the most perfect among acts of virtue (enduring death is praiseworthy only as ordered to a good, faith and love of God), but among all virtuous acts, it shows the perfection of charity to the highest degree:
“Martyrdom, among all virtuous acts, shows the perfection of charity to the highest degree.”
Saint Thomas Aquinas, Summa Theologica, II-II, q. 124, a. 3[23]
The Catechism echoes this teaching: “Martyrdom is the supreme witness given to the truth of the faith… The martyr bears witness to Christ who died and rose, to whom he is united by charity”[24]. Here we find Augustine’s definition again: martyrdom is not a feat, it is love brought to its fulfillment. Fortitude, a virtue apparently of warriors, thus culminates in the total gift of self.
Strength in the Fire: The Voice of the Martyrs
What the Doctors of the Church have defined, the martyrs have written with their blood. They are living proof that Christian fortitude is not a theory: their acta, often recorded by eyewitnesses, are among the oldest and most reliable documents of the Church. Their voices, gathered at the threshold of death, are disarmingly clear.
Saint Ignatius of Antioch: “The Wheat of God”
Bishop of Antioch, led to Rome to be thrown to the beasts around the year 110, Saint Ignatius wrote seven moving letters along the way. Far from fearing death, he begged the Christians of Rome to do nothing to deprive him of it:
“Let me be the food of the beasts, by which it will be possible for me to find God. I am the wheat of God and I am ground by the teeth of the beasts, to be found a pure bread of Christ.”
Saint Ignatius of Antioch, Letter to the Romans, IV, 1-2[25]
His strength is not a stoic indifference to suffering, but a desire, the desire to unite with Christ’s sacrifice until he himself becomes Eucharist. The strength of the martyrs here takes the form of the most ardent love.
Saint Polycarp: “Eighty-six Years I Have Served Him”
Disciple of Saint John and bishop of Smyrna, Saint Polycarp was arrested as an old man around 155. When ordered by the proconsul to curse Christ to save his life, he replied with these words, preserved in the oldest martyrdom account we possess:
“Eighty-six years I have served Him, and He has done me no wrong: how then can I blaspheme my King, who saved me?”
Saint Polycarp of Smyrna, Martyrdom of Polycarp, IX, 3[26]
The entire fidelity of a life is summed up in this simple calculation: God has never betrayed me in eighty-six years; it is not at the hour of death that I will betray Him. Polycarp’s strength is that of steadfastness, not the flash of a moment, but the coherence of a whole existence.
Saint Blandina and the Martyrs of Lyon
In 177, under Marcus Aurelius, about forty Christians from Lyon and Vienne were tortured in the amphitheater of the Three Gauls. Among them, a young slave, Blandina, frail and despised, became the strongest of all. Under torture, she could only repeat one thing:
“I am a Christian, and we do no wrong.”
Saint Blandina, in the Letter of the Churches of Lyon and Vienne (Eusebius, Ecclesiastical History, V, 1)[27]
Witnesses recount that the torturers grew exhausted before she did, and her companions saw “in their sister Him who was crucified for them.” This is Pauline strength in action: grace “is made perfect in weakness”, it is the weakest, the defenseless slave, who holds firm when the strong falter. For the full account of this first great martyrdom in Gaul, see The Martyrs of Lyon in 177.
Saint Perpetua and Saint Felicity: “Another Will Suffer in Me”
In Carthage, in 203, two young women (Perpetua, a patrician and young mother, and Felicity, a pregnant slave) faced the beasts together. Perpetua’s diary, preserved in the Passion of Perpetua and Felicity, is one of the oldest texts written by a Christian woman. Felicity, in full labor in her prison, mocked by one of the jailers’ servants who asked her how she would face the wild beasts, replied:
“Now it is I who suffer what I suffer; but there, another will be in me who will suffer for me, because I too will suffer for him.”
Saint Felicity, Passion of Perpetua and Felicity, 15[28]
This is the exact formula of Christian strength: it is not I who endure, but Christ who endures in me. “I can do all things in Him who gives me strength.” The two women entered the arena “with radiant faces”; later, after the cow’s assault, Perpetua lifted Felicity up, holding out her hand to her.
Tertullian: “The Blood of the Martyrs Is the Seed”
Witnessing these persecutions, Tertullian drew the great law of Church history: the confessed strength of the martyrs is never sterile.
“The more you kill us, the more we multiply: the blood of Christians is seed.”
Tertullian, Apology, ch. 50[29]
The strength of the martyrs, far from extinguishing the Church, caused it to grow. This is why the saints never saw martyrdom as defeat, but as the most fruitful victory, where apparent weakness overcomes the strength of the persecutor.
The Strength of the Saints in History: Daring Great Things for God
If the endurance of martyrs is the pinnacle of strength, its other act, to confront, to dare, also has its great voices. The entire history of the Church is marked by saints who undertook works for God beyond their means, certain that “nothing is impossible with God” (Lk 1:37).
Saint Joan of Arc: God First Served, an Attributed Motto
No saint embodies the strength to dare like Joan of Arc (1412–1431), a young illiterate peasant girl who lifted a kingdom before being burned at nineteen. Tradition attributes to her a motto, Messire Dieu premier servi, which sums up this priority given to God in all things[30]. But her purest strength does not burst forth on the battlefield: it shines at her trial, alone facing theologians who harass her.
And when, by a trick question, she is asked if she is in a state of grace, hoping to trap her whatever her answer, she outwits the trap with words of admirable humility and strength:
“If I am not, may God put me there; if I am, may God keep me there.” Saint Joan of Arc, hearing of February 24, 1431[31]
Her strength is not merely the boldness of a fearless nature: it is the faithfulness of a conscience grounded in God, yielding neither to the fear of the stake nor to the subtlety of the doctors.
Saint Teresa of Avila: “Either Suffer or Die”
Reformer of the Carmelites, tireless founder traveling Spain despite illness and opposition, Saint Teresa of Avila (1515–1582) made strength a condition of the prayer life. She calls for resolute souls:
“God, who shows no partiality, always assists those who are courageous in His service.”
Saint Teresa of Avila, The Way of Perfection, ch. 16[32]
For her, the great secret of holiness lies in a “determined determination” (una determinada determinación) never to stop on the way, no matter what happens. This resolve led her to a famous motto, expressing her burning desire for God: “Lord, either die or suffer” (o morir o padecer)[33]. And the quiet strength that flows from it she inscribed on the bookmark found in her breviary after her death:
“Let nothing disturb you, let nothing frighten you; all things pass away; God never changes; patience obtains all things; whoever has God lacks nothing: God alone suffices.”
Saint Teresa of Avila, “Nada te turbe”[34]
Her strength is therefore not a tension, but a peace: that of one who knows that all things pass and God alone remains.
The Strength of the Little Ones: The Way of Childhood Is Not the Way of Weakness
Sometimes the strength of heroes is thought to oppose the humility of “little souls.” The saints say the opposite: the highest strength is precisely that which dares to be small and weak before God, because it relies on Him alone. This is the great discovery of Saint Thérèse of Lisieux and all the masters of trust.
Saint Thérèse of Lisieux: “The Warrior’s Vocation”
Saint Thérèse of Lisieux (1873–1897) was long reduced to a fragile sweetness. Her writings reveal a fiery soul, who felt called to all battles at once:
“yet I feel other vocations in me, I feel the vocation of WARRIOR, PRIEST, APOSTLE, DOCTOR, MARTYR; finally, I feel the need, the desire to accomplish for you, Jesus, all the most heroic works […]”
Saint Thérèse of the Child Jesus, Manuscript B, f° 2 v° (September 1896)[35]
Yet her strength was not exercised by the sword, but by the most hidden endurance: holding on, in her last months, through a terrible night of faith where “everything disappeared,” without ceasing to believe or love. Her “little way” is not a path of ease: it is the strength to remain a little child who lets herself be carried, where pride would want to carry itself. She echoes Saint Paul exactly: “I will boast rather of my weaknesses, so that the power of Christ may dwell in me” (2 Cor 12:9).
Strength in Weakness: The Great Reversal of the Saints
This is the paradox that all the saints end up proclaiming with one voice: true strength is not in not being weak, but in letting God be strong in us. It may be said, synthesizing all that precedes: a steadfastness wholly united with meekness, where gentleness is not softness but the mark of true strength[36].
Strength that is carried away and hardened often betrays a hidden weakness; true strength, on the other hand, can afford gentleness because it has nothing to prove. On this gentleness, which is the mark, not the enemy, of true strength, see What the Saints Say About Gentleness.
The Mystics: “I Am Strength Itself”
The great mystical voices add a final note: the strength that the saints receive is not only given by God, it is God Himself becoming our strength. To Sister Josefa Menendez (1890–1923), Jesus said:
“I have humility for your pride. […] I am Strength itself.”
Jesus to Sister Josefa Menendez, A Call to Love[37]
Like all private revelations, this word does not bind the faith, but it illuminates the common practice of the saints: before my weakness, I do not have to manufacture a strength I do not have, I must draw from Him who is “Strength itself.” This is exactly what Scripture already sang: “The Lord is my strength and my song” (Ps 117 (118):14), a verse the Catechism places at the heart of its article on fortitude[38].
Strength in the Divine Will
For the spirituality of the Divine Will, as conveyed by Luisa Piccarreta’s Book of Heaven, strength finds its highest source. To live in the Will of God is no longer to rely on one’s own will, always fragile, always subject to fear, but to allow the almighty will of God to act within oneself. The soul who “lives in the Divine Will” no longer draws strength from itself: it participates in God’s very strength, like a drop of water takes on the power of the ocean in which it is lost[39]. This is the perfect fulfillment of Saint Paul’s “I can do all things through Him who gives me strength”: no longer merely helped by God, but acting in His Will. This strength is not the hardness of a strained will, but the peace of a surrendered will, the same filial surrender that is the soul of trust and abandonment.
What the Saints Teach About Strength
Together, these voices paint a single portrait, far from the hardness often attributed to strength. Scripture shows that it comes from faith and a presence, “The Lord is with you.” Christ and Saint Paul reveal that it unfolds especially in weakness and unites with a Victor already victorious. The Doctors of the Church (Augustine, Ambrose, Thomas) define it as a form of love, whose highest act is not to attack but to endure, even unto martyrdom. The martyrs (Ignatius, Polycarp, Blandina, Perpetua, Felicity) wrote it in their blood, proving that grace makes the weakest stronger than the executioner. Joan of Arc and Teresa of Ávila show strength that dares and perseveres; Thérèse of Lisieux and the mystics, the strength of the little ones who let God be strong in them.
Above all, one conviction runs through them: Christian strength is never self-confidence. “Whom shall I fear?” sings the psalmist, not because he is invincible, but because “the Lord is my light and my salvation.” This is the consolation the saints’ voices offer every fearful heart: strength is not a temperament reserved for the fearless, but a grace offered to all, growing precisely where one recognizes one’s weakness. “When I am weak, then I am strong.”
For Further Reading
- How to Grow in Strength, the practical counterpart to this article: the nature of strength as a cardinal virtue, its two acts (to face and to endure), its two enemies (cowardice and recklessness), the concrete means the saints used to grow it, and its fruits.
- The Martyrs of Lyon in 177, the full account of Saint Blandina and her companions, the first great testimony of the martyrs’ strength in Gaul.
- What the Saints Say About Perseverance, the aspect of strength oriented toward endurance: holding fast to the good begun until the end.
- What the Saints Say About Patience, the sister virtue, which bears present evil without faltering; saints are often both strong and patient together.
- What the Saints Say About Hope, the theological virtue that supports strength on God’s promises and guards it from despair.
- What the Saints Say About Faith, the root from which the martyrs’ strength springs: “Through faith… they showed courage in battle” (Heb 11).
- What the Saints Say About Gentleness, the twin virtue of fortitude, where gentleness and steadfastness meet.
Notes and References
Catechism of the Catholic Church, §1831: the seven gifts of the Holy Spirit: wisdom, understanding, counsel, fortitude, knowledge, piety, and fear of the Lord (cf. Is 11:1-2). On the gift of fortitude, cf. Saint Thomas, Summa Theologiae, II-II, q. 139, a. 1: it gives “a firmness of soul” that surpasses the measure of acquired virtue, especially to bring to completion the work begun.
1Gospel according to Saint John 16:33, official liturgical translation (AELF): “In the world you have suffering, but take heart! I am the conqueror of the world.” (Vulgate: confidite, ego vici mundum). Last words of the discourse after the Last Supper.
2 14Letter to the Philippians 4:13, official liturgical translation (AELF): “I can do all things through him who gives me strength.” (Vulgate: omnia possum in eo qui me confortat). Paul writes from prison, having learned to live in abundance and in want.
3 18Second Letter to the Corinthians 12:9-10, official liturgical translation (AELF): “My grace is sufficient for you, for my power is made perfect in weakness. […] For when I am weak, then I am strong.” (Vulgate: virtus in infirmitate perficitur). Christ’s answer to Paul about the thorn in the flesh.
4 17Wisdom 8:7, official liturgical translation (AELF): Wisdom “teaches temperance and prudence, justice and strength of soul, and nothing is more useful to men in life.” Foundational verse for the doctrine of the four cardinal virtues, cited in CCC §1805.
5Catechism of the Catholic Church, §1808, official French edition, Mame/Plon, 1992: “Fortitude is the moral virtue that ensures firmness and perseverance in difficulties in the pursuit of the good. It strengthens the resolve to resist temptations and to overcome obstacles in moral life. The virtue of fortitude enables one to conquer fear, even fear of death, and to face trial and persecutions. It disposes one to renounce and sacrifice one’s life for a just cause.” The paragraph cites Ps 118:14: “The Lord is my strength and my song.”
6 38Ephesians 6:10-11, official liturgical translation (AELF): “Finally, draw your strength from the Lord and from the vigor of His strength. Put on the battle equipment given by God so that you can take your stand against the devil’s schemes.” The passage unfolds the image of spiritual weapons (belt of truth, shield of faith, helmet of salvation, sword of the Spirit).
7Catechism of the Catholic Church, §2015: “The way of perfection passes through the cross. There is no holiness without renunciation and spiritual combat (cf. 2 Tim 4). Spiritual progress entails asceticism and mortification leading gradually to life in the peace and joy of the beatitudes.” Cf. §2725: “Prayer is a battle.”
8Joshua 1:9, official liturgical translation (AELF): “Did I not command you: ‘Be strong and courageous!’? Do not fear, do not be dismayed, for the Lord your God will be with you wherever you go.” Command repeated in Dt 31:6-8 and Jos 1:6-7.
9Psalm 26 (27):1, official liturgical translation (AELF): “The Lord is my light and my salvation; whom shall I fear? The Lord is the stronghold of my life; of whom shall I be afraid?” Cf. Ps 27 (28):7-8: “The Lord is my strength and my stronghold… The Lord is the strength of His people.”
10Saint John Paul II, homily inaugurating his pontificate, St. Peter’s Square, October 22, 1978: “Do not be afraid! Open wide the doors to Christ!” Text on Vatican.va. Echoes the biblical “Do not fear” addressed to God’s elect.
112 Maccabees 7:20-23 (official liturgical translation, AELF): “Their mother was particularly admirable and worthy of glorious memory: seeing her seven sons die within the space of a single day, she bore it valiantly, for she had put her hope in the Lord. She exhorted each of them in the language of their fathers; this heroic woman spoke to them with manly courage: ‘I am unable to say how you were formed in my womb. It was not I who gave you spirit and life [...] It is the Creator of the world [...] who [...] will give you back spirit and life, because, for the love of His laws, you now despise your own existence.’” The second son proclaims (v. 9): “since we die in faithfulness to His laws, the King of the world will raise us up to eternal life.” The first great martyrdom account and one of the clearest affirmations of resurrection in the Old Testament.
12Gospel according to Saint Matthew 10:28, official liturgical translation (AELF): “Do not fear those who kill the body without being able to kill the soul; rather, be afraid of the one who can destroy both soul and body in hell.” Christ shifts fear: the only truly dreadful thing is to lose God, not life.
13Letter to the Hebrews 12:2, official liturgical translation (AELF): Jesus, who “renouncing the joy set before Him, endured the cross, despising the shame of that torment.” Christ is the supreme model of strength that endures.
15First Letter to the Corinthians 16:13, official liturgical translation (AELF): “Be watchful, stand firm in the faith, be courageous, be strong.” (Vulgate: vigilate, state in fide, viriliter agite et confortamini).
16Saint Augustine (354-430), De moribus ecclesiae catholicae (On the Morals of the Catholic Church), Book I, ch. 15, n. 25 (PL 32, 1322): Augustine defines the four cardinal virtues as four forms of the same love of God, “Temperance is love giving itself entirely to what is loved; fortitude is love easily enduring all things for the sake of God; justice is love serving only what is loved…; prudence is love discerning what helps it from what hinders it.” (Latin: “Fortitudo est amor omnia propter Deum facile perferens.”)
19Saint Ambrose of Milan (c. 339-397), On Duties (De officiis ministrorum), Book I, 21, 96, on anger: “Melior est autem secundum Salomonem, qui iracundiam continet, quam qui urbem capit; quia ira etiam fortes decipit”, “better is, according to Solomon, he who restrains his anger than he who takes a city; for anger deceives even the strong.” First Christian treatise to take up Cicero’s doctrine of the four cardinal virtues and Christianize it: true strength is not that of weapons but victory over oneself and service of the good. He cites Pr 16:32 (AELF: “The patient man is better than the hero: better to master one’s mood than to take a city”). Reference edition: On Duties, Les Belles Lettres.
20Saint Thomas Aquinas (1225-1274), Summa Theologiae, II-II, q. 123, a. 6: “The principal act of fortitude is to endure, that is, to stand firm in dangers, rather than to attack.” Reference edition: Summa Theologiae, Éditions du Cerf.
21Saint Thomas Aquinas, Summa Theologiae, II-II, q. 123, a. 6, reply to objection 1: three reasons why enduring is more difficult than attacking: (1) the one who endures is assailed by one stronger (ab aliquo fortiori invadente), while the attacker himself attacks from a position of strength; (2) the one who endures already feels dangers as imminent (iam sentit pericula imminentia), while the attacker sees them as to come, yet it is harder not to be shaken by the present than by the future; (3) enduring implies duration (diuturnitatem temporis), while attacking may spring from a sudden impulse (ex subito motu). The subsidiary virtues of fortitude are distributed according to its two acts: magnanimity and magnificence (to face), patience and perseverance (to endure); cf. q. 128 and q. 136-137.
22Saint Thomas Aquinas, Summa Theologiae, II-II, q. 124: article 2 establishes that martyrdom is an act of fortitude (“martyrium est fortitudinis actus”); article 3 answers that martyrdom, taken in its species, cannot be the most perfect among acts of virtue (“perfectissimus inter virtutis actus”), but that “inter omnes actus virtuosos maxime demonstrat perfectionem caritatis”, among all virtuous acts, it shows the perfection of charity to the highest degree.
23Catechism of the Catholic Church, §2473: “Martyrdom is the supreme witness given to the truth of the faith; it designates a witness that goes to death. The martyr bears witness to Christ who died and rose, to whom he is united by charity.”
24Saint Ignatius of Antioch (c. 35–c. 110), Letter to the Romans, IV, 1-2 (ed. Sources Chrétiennes 10 bis, Cerf; trans. Fr. Th. Camelot): “Let me be the food of the beasts, by which it will be possible for me to find God. I am the wheat of God and I am ground by the teeth of the beasts, to be found a pure bread of Christ.” Taken from Antioch to Rome to be thrown to the wild beasts, Ignatius begs the Christians of Rome not to prevent his martyrdom, which he compares to the Eucharist. The Catechism (§2473) cites this plea in its own translation: “Let me be the food of the beasts. It is through them that I shall reach God.”
25Martyrdom of Saint Polycarp, IX, 3 (ed. Sources Chrétiennes 10 bis, Cerf): response of the bishop of Smyrna to the proconsul urging him to curse Christ, “For eighty-six years I have served him, and he has done me no wrong: how then can I blaspheme my King, who saved me?” The account, sent by the Church of Smyrna to that of Philomelium around 156, is the oldest preserved acta martyrum, written by eyewitnesses.
26Letter of the Churches of Lyon and Vienne, preserved by Eusebius of Caesarea, Ecclesiastical History, V, 1 (ed. Sources Chrétiennes 41, Cerf): under torture, the young slave Blandina “was filled with such strength that they grew weary… admitting defeat,” repeating only these words: “I am a Christian, and nothing wrong is done among us.” Her companions “saw in their sister the One who was crucified for them.” Martyrs of Lyon, 177, under Marcus Aurelius. See the article The Martyrs of Lyon in 177.
27Passion of Perpetua and Felicity, 15 (ed. Sources Chrétiennes 417, Cerf): in Carthage in 203, the slave Felicity, in full labor in her prison, replies to one of the jailers’ servants mocking her, “Now it is I who suffer what I suffer; but over there, another will be in me who will suffer for me, because I too will suffer for him.” The two arena scenes are distinct: the entrance “with radiant faces” (18), then, after the cow’s assault, the outstretched hand to lift her up (20). Perpetua’s prison diary, integrated into the account, is one of the oldest Christian texts written by a woman.
28Tertullian (c. 155-220), Apologeticus, ch. 50: “Plures efficimur quotiens metimur a vobis: semen est sanguis christianorum”, “We become more numerous whenever you harvest us: the blood of Christians is seed.” Often quoted as “the blood of the martyrs is the seed of Christians.” Testimony to the fruitfulness of strength confessed even unto martyrdom.
29Motto attributed to Saint Joan of Arc: the formula Messire Dieu premier servi was not found in this form, nor in the form Yes, Our Lord God first served, in the session of March 31, 1431 of the reference edition of the condemnation trial (Procès de condamnation de Jeanne d'Arc, ed. P. Tisset, Société de l'histoire de France). It is therefore presented here as a motto attributed to the saint, in accordance with the Dictionnaire encyclopédique de Jeanne d'Arc by Pascal-Raphaël Ambrogi and Mgr Dominique Le Tourneau (Desclée de Brouwer, 2017), which speaks of it as a famous quotation attributed to Saint Joan of Arc.
30Saint Joan of Arc, hearing of February 24, 1431 (3rd public session, Rouen): asked if she knew herself to be in a state of grace, a trap question, any answer condemning her, she replies: “If I am not, may God put me there; if I am, may God keep me there.” A famous answer for its humility and theological accuracy. Same Tisset edition.
31Saint Teresa of Ávila (1515-1582), The Way of Perfection, ch. 16 (recurring theme in The Book of Life, ch. 13): “God, who shows no partiality, always assists those who are courageous in His service”; the saint joins to this courage humility and a “holy daring,” and exhorts to “great desires” in the life of prayer. French translation, Complete Works (Éditions du Seuil, 1949; reprinted Cerf, 1995).
32Saint Teresa of Ávila, Life, 40, 20: “Señor, o morir o padecer” (“Lord, either to die or to suffer”). Carmelite tradition often cites the motto in the reversed form “either to suffer or to die.” It goes with her doctrine of a “determined determination” (una determinada determinación, Way of Perfection, ch. 21) never to stop on the path of prayer, whatever the difficulties.
33Saint Teresa of Ávila, poem known as “Nada te turbe”, found in her breviary after her death: “Let nothing disturb you, let nothing frighten you; all things pass; God does not change; patience obtains all things; whoever has God lacks nothing: God alone suffices.” (Nada te turbe, nada te espante… solo Dios basta).
34Saint Thérèse of the Child Jesus (1873-1897), Manuscript B, f° 2 v° (September 1896), prayer addressed to Jesus, entrusted to her sister Marie: “yet I feel other vocations in me, I feel the vocation of WARRIOR, PRIEST, APOSTLE, DOCTOR, MARTYR; finally, I feel the need, the desire to accomplish for you, Jesus, all the most heroic works […]” (the […] mark the omission). At the end of this impulse, she discovers that her vocation sums them all up: “My vocation is Love!” Ed. Autobiographical Manuscripts, Cerf / Central Office of Lisieux.
35Saint Francis de Sales (1567-1622): the phrase “Nothing is so strong as gentleness, nothing so gentle as true strength,” often placed under his name, has no established exact source in his works, it is absent from the Introduction to the Devout Life, the Treatise on the Love of God, and the Selected Letters. The sentence above is therefore the article’s synthesis, without attribution, in the spirit of his doctrine of gentleness.
36Jesus to Sister Josefa Menendez (1890-1923), Religious of the Sacred Heart, A Call to Love: The Message of the Heart of Jesus to the World, Work of the Sacred Heart, Les Feuillants, Poitiers (new edition, 131st thousand), 2014 ed., p. 64, chapter “Everyday Lessons and Pardons”: dialogue of Saturday, November 6, 1920, to Josefa asking Him for humility, Jesus answers “I have humility for your pride”; to her confession “I am also so cowardly... so weak for suffering!...”, He answers “I am Strength itself” (the […] in the main text mark this reply of Josefa between the two sentences; place and verbatim verified in the cited edition). Private revelation: it does not bind faith but illuminates the common practice of the saints, before her weakness, the soul draws strength from God alone.
37L. Piccarreta, The Book of Heaven, vol. 28, April 1, 1930: to the soul traveling the Sea of the Divine Will, Jesus says that “everything you take in Him forms your little drops in our Sea” and that it is “the Dominant Strength of our Fiat” that draws her littleness; cf. vol. 33, May 12, 1934: the soul abiding in the Will of God has “in your power: Strength, Light, and My Will Itself.” The above paragraph is a synthesis of it.
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