Gregory Palamas (1296-1359)

Birth and Youth at the Court of Constantinople

Gregory was born in 1296 in Constantinople, into a family of Byzantine nobility originally from Asia Minor^[2]. His father, Constantine Palamas, served at the court of Emperor Andronicus II Palaiologos — a senator esteemed for both his piety and competence — but died while Gregory was still a child^[3]. His mother and two sisters later embraced religious life as well; his two brothers followed him to Mount Athos^[4].

Orphaned of his father, Gregory came under the personal protection of the emperor, who financed his education at the Imperial University of Constantinople^[5]. There he received a full classical education — grammar, rhetoric, then philosophy, with particular emphasis on Aristotelian logic — and proved such a brilliant student that his mastery of syllogism impressed the scholars at court^[6]. Andronicus II intended him for a career in state service, following in his father’s footsteps. But around the age of twenty, Gregory renounced this predetermined future to devote himself to monastic life^[7].

The Call of Mount Athos

In 1316, Gregory left Constantinople for Mount Athos, the “Holy Mountain” that had concentrated the monastic life of the Byzantine world for centuries. He first entered as a novice at the Vatopedi Monastery, under the spiritual guidance of the hegumen Nicodemus^[8]. His two brothers accompanied him in this radical conversion; his mother and sisters, remaining in Constantinople, also retired into religious life^[9].

Upon Nicodemus’s death, Gregory spent about eight years under the direction of the elder Nicephorus, then joined the Great Lavra of Saint Athanasius the Athonite, where he served as cantor for several years^[10]. He finally withdrew to the small hermitage of Glossia, under the guidance of Gregory of Sinai, one of the great masters of hesychast prayer of his time^[11].

The Years of Hesychast Formation (circa 1316-1326)

The incursion of pirates and Turkish soldiers on the coasts of the Holy Mountain forced Gregory to flee to Thessalonica around 1325-1326^[12]. It was there that he was ordained priest in 1326^[13]. Shortly after, he founded with ten companions a small eremitic community near Berea (Véria), in the mountains of Macedonia, where he deepened for several years the practice of unceasing prayer^[14]. A new wave of troubles forced him to return to Athos around 1331, where he retired to the hermitage of Saint Sabbas^[15]. Around 1335, he briefly served as hegumen of the Esphigmenou Monastery, which he left after internal tensions over the strictness of the monastic rule^[16].

These twenty years of monastic life — withdrawn, silent, almost anonymous — form the essential background to understanding what follows: when the controversy erupted, Palamas did not speak as a mere armchair philosopher, but as a witness of a prayer practice he had himself lived for two decades.

Before addressing the controversy, it is necessary to understand what Palamas defended. Hesychasm (from the Greek hêsychia, meaning “rest,” “silence”) refers to a tradition of contemplative prayer specific to Eastern monasticism, based on the interior repetition of the name of Jesus, the guarding of the heart, and the pursuit of inner silence before God^[17]. In other words: for a hesychast, prayer is not primarily a reasoning about God, but an attention of the heart that calms itself to make room for the divine presence — an intuition that the Catholic spiritual tradition also recognizes, albeit in different forms, in simple gaze or prayer of recollection.

A Prayer Tradition Older Than the Controversy

This tradition has its roots in the desert monasticism of the 4th-5th centuries and gradually became systematized in Byzantium from the 11th-12th centuries, notably among authors such as Symeon the New Theologian († 1022) and, later, Nicephorus the Hesychast^[18]. Thus, at the time Palamas inherited it, it was neither a novelty nor a personal invention: it was a spiritual heritage already centuries old that Palamas systematized and defended theologically.

The “Jesus Prayer” and the Psychophysical Method

At the heart of hesychast practice is the “Jesus Prayer”: the continual repetition of a brief invocation — most often “Lord Jesus Christ, Son of God, have mercy on me, a sinner” — paced with the breath, until it becomes almost spontaneous in the heart of the one praying^[19]. Some monks of Mount Athos in the 13th-14th centuries associated with it a precise psychophysical method: a collected posture, head inclined, gaze fixed toward the region of the heart, breath held — techniques intended to foster recollection, not ends in themselves^[20]. It was this method, deemed crude and superstitious by outside observers, that gave Barlaam his easiest—and least relevant—angle of attack, since Palamas never defended the method as a necessity, but only as a legitimate and secondary aid to the prayer of the heart^[21].

Who Was Barlaam of Calabria?

Barlaam of Seminara, called Barlaam the Calabrian (c. 1290–1350), was an Italo-Greek monk born in Calabria, trained in Aristotelian philosophy and Western theology, before settling in Constantinople where he taught and connected with the humanist circles of the court^[22]. Well versed in Greek and Latin, familiar with the thought of Pseudo-Dionysius, he first distinguished himself in controversy against Latin theologians over the Filioque, before turning, from 1336 onward, against the hesychast monks of Mount Athos^[23].

Barlaam’s later fate is noteworthy: condemned by the 1341 synod, he left Constantinople for Italy, reconciled with Rome as early as 1342, and became Catholic bishop of Gerace in Calabria^[24]. He was also, in those same years, one of the very first Greek teachers of Petrarch, thus contributing, by an unexpected detour, to the rediscovery of Greek letters in Italy at the dawn of the Renaissance^[25].

The Attack on the Monks of Mount Athos

Barlaam accused the hesychasts of claiming to see God with their bodily eyes in the form of a light — a claim he considered both philosophically absurd (God, purely spiritual, cannot be seen by a physical sense) and theologically suspect of Messalianism, an ancient heresy according to which the purified soul would see the divine essence directly^[26]. He mocked the monks’ psychophysical method, contemptuously nicknaming them omphalopsychoi — “those who have their soul in their navel”^[27].

“If one does not admit that there exists, besides the divine essence, an uncreated reality by which God communicates Himself and allows Himself to be seen, then those who claim to contemplate a divine light contemplate, of two things, either a sensible illusion or a fantasy of their imagination.” — Summary of the position of Barlaam of Calabria as reported and refuted by Gregory Palamas in the Triads^[28]

Palamas was correct on a decisive point: behind a dispute that initially seems technical and monastic, the real question is whether man can, yes or no, have a real and not merely conceptual experience of God in this life.

The Triads in Defense of the Holy Hesychasts

In response to Barlaam, Palamas wrote between 1338 and 1341 his major work: the Triads in Defense of the Holy Hesychasts, nine treatises grouped into three “triads,” whose critical edition was established by John Meyendorff^[29]. The work is not merely a polemical reply: Palamas unfolds a genuine theological epistemology, distinguishing philosophical knowledge of God — based on reasoning from creatures — and mystical knowledge, based on the experience of grace.

“Every word can be contested by another word; but what word can contest life?” — Gregory Palamas, cited and commented on by Olivier Clément, art. “Gregory Palamas,” Encyclopædia Universalis^[30]

This phrase sums up Palamas’s central intuition: a lived spiritual experience — the life of prayer, the inner transformation of the saints — has, in his view, a force of conviction that no purely rational argument can overturn. This is a point on which the Catholic mystical tradition, from Saint John of the Cross to Saint Teresa of Avila, largely converges with his intuition: the experience of grace surpasses what discursive reasoning alone can express.

The Hagioritic Tome of 1340

In 1340, Palamas wrote, with the agreement of the principal hegoumenoi of Mount Athos, the Hagioritic Tome, a short doctrinal manifesto refuting point by point Barlaam’s theses and affirming the reality of the vision of divine light by the saints^[31]. The text was signed by the highest monastic authorities of the Holy Mountain — proof that Palamas was not speaking as an isolated maverick, but as the theological spokesperson of a spiritual tradition commonly received on Athos.

To judge Palamas fairly, one must first present his doctrine in its best formulation—before examining the difficulties from the Catholic perspective.

The Idea in Common Language, Before Technical Distinctions

In other words, before entering technical vocabulary: Palamas seeks to answer a very concrete question. If God is absolutely transcendent, incomprehensible, beyond the reach of created intellect—as all Christian tradition, including Catholic, affirms—how can one simultaneously say that the saints have a real experience of God, that they are “touched” by Him, that they see His glory? To hold these two affirmations together without contradiction, Palamas proposes to distinguish, in God Himself, what remains forever inaccessible (His essence) and that by which He really communicates Himself to the creature (His energies). The image he uses is that of the sun: no one can look directly at the solar disk itself, but all truly receive its light and heat—which are nevertheless not “something other” than the sun^[32].

The Divine Essence, Absolutely Inaccessible

For Palamas, the essence of God (ousia) remains, and will remain eternally, radically unknowable and unparticipated—including for angels and the blessed in Heaven^[33]. On this precise point, Palamas says nothing that the Catholic tradition does not also confess: God, in His infinite essence, infinitely surpasses all created capacity for understanding, and even the beatific vision of the elect does not “comprehend” God in the sense of exhausting or circumscribing Him^[34].

The Uncreated Energies, God Really Communicated

But Palamas adds that there exist in God energies (energeiai)—His operations, His grace, His glory, His life—which are themselves uncreated, that is truly divine and not mere created effects in the soul, while being really distinct from the essence^[35]. It is through these energies, and not through His essence, that God really communicates Himself to the world and allows Himself to be experienced by the saints.

“He does not manifest Himself wholly, and yet He manifests Himself wholly; He is wholly participated in, and yet He remains unparticipated.”
— Gregory Palamas, cited by Olivier Clément, art. “Gregory Palamas,” Encyclopædia Universalis^[36]

It is precisely this real distinction in God—between the essence and what eternally proceeds from it—that will become, as we shall see, the major point of friction with Catholic theology, which on the contrary confesses the absolute simplicity of God.

The Light of Tabor: Uncreated or Mere Symbol?

The most concrete issue in the controversy concerns a specific Gospel episode: the Transfiguration of Christ on Mount Tabor (Mt 17:1-8), where the Apostles Peter, James, and John behold Jesus “shining like the sun.” For Barlaam, this light could only be a created sensible phenomenon, a visible symbol of divine glory but not divinity itself. For Palamas, on the contrary, this light was the real and uncreated manifestation of the divinity of Christ—the same light, according to him, that hesychasts would be able to contemplate by grace in their prayer^[37].

“God is called Light, not according to His essence, but according to His energy.”
— Formula attributed to Gregory Palamas, summarizing his doctrine of the light of Tabor^[38]

It must be honestly noted that this assertion was not, in itself, an absolute novelty: the idea that the light of Tabor manifested something properly divine is already found, less systematized, in some earlier Byzantine authors^[39]. What Palamas adds, and what becomes properly problematic, is the metaphysical framework—the real essence/energies distinction—intended to make this assertion coherent.

A Theology of Deification

Palamas connects this doctrine to that of theosis, the deification of man by grace: through participation in the uncreated energies, man is truly made a participant in divine life, body and soul, already in this life and fully in the resurrection^[40]. On this point as well, the intuition aligns with a deeply Christian and fully Catholic conviction—but which Latin theology articulates differently, as we shall see later.

The table below summarizes, necessarily in a simplified way, the structural difference between Palamite theology and Thomistic theology on this precise point—a difference that will be developed further in the section devoted to the Catholic judgment:

The June 1341 Council: Condemnation of Barlaam

The first synod, convened at Hagia Sophia on June 10, 1341, ruled in favor of Palamas: Barlaam’s theses were condemned as undermining the spiritual experience of the monks^[50]. But the death of Emperor Andronicus III, five days after the synod’s conclusion, plunged the Empire into a regency civil war that would complicate Palamas’s fate for years^[51].

The Fall: Imprisonment under Akindynos (1342-1347)

Taking advantage of the political chaos, a former disciple of Palamas turned opponent, the monk Gregory Akindynos, adopted some of Barlaam’s criticisms against the essence/energies distinction, which he considered to introduce a multiplicity in God^[52]. Unwittingly caught up in the intrigues of the regency, Palamas was arrested in 1342, then formally excommunicated by a synod convened under pressure from Patriarch John XIV Kalekas on November 4, 1344^[53]. He remained imprisoned for about four years, during which he wrote his Seven Antirrhetics against Akindynos^[54].

The 1347 Council: Rehabilitation

The political reversal of February 1347 — the deposition of Patriarch John Kalekas by Emperor John VI Cantacuzene, then victorious in the civil war — led to Palamas’s immediate rehabilitation: his doctrine was confirmed, and his opponents condemned in turn^[55].

The 1351 Council: Official Dogma of the Byzantine Church

The final act took place in 1351: two successive synods, whose synodal tome was promulgated on August 15, 1351, solemnly and definitively ratified Palamite theology as the official doctrine of the Byzantine Church, under penalty of excommunication for anyone continuing to contest it^[56]. Some contemporary Orthodox authors sometimes refer to this synod, in a non-consensual manner even within Orthodoxy, as the “ninth ecumenical council”^[57] — but it should be noted that these purely Byzantine synods were held without representation or consultation of Rome, at a time when the schism of 1054 was already fully consummated. The Catholic Church therefore recognizes no ecumenical conciliar authority in them.

A Delayed Installation (1347–1350)

Consecrated Metropolitan (Archbishop) of Thessalonica in May 1347, Palamas was only able to effectively take possession of his see three years later, in 1350: the city, held by the radical popular faction of the Zelotes, hostile to the aristocracy represented by Cantacuzene, refused him entry for several years^[58]. This period of forced waiting illustrates how deeply intertwined the theological controversy remained with the political rivalries of the declining Byzantine Empire throughout its course.

The Debate with Nikephoros Gregoras

Once installed, Palamas faced another formidable opponent: the historian and philosopher Nikephoros Gregoras, who resumed and extended the philosophical critique of Palamism after 1350^[59]. A solemn public debate took place between them in 1355 in Constantinople, in the presence of Emperor John V Palaiologos and, notably, a papal legate, Paul of Smyrna^[60] — a sign that the Byzantine controversy, far from being ignored by Rome, was closely followed by the Avignon papacy, then engaged in attempts at rapprochement with Constantinople. Between 1356 and 1358, Palamas wrote four additional treatises against Gregoras, who refused to submit to synodal judgment and was imprisoned for two years in a monastery^[61].

Captive of Turkish Pirates (1354–1355)

In 1354, while sailing to Constantinople, Palamas was captured by Turkish pirates and held prisoner for nearly a year in Asia Minor, in the territories of the nascent Ottoman emirate, before being released for ransom^[62]. During his captivity, he engaged in several theological dialogues with Muslims, some of whom converted, leaving a written account — one of the rare direct testimonies from a leading Byzantine theologian about his personal exchanges with the emerging Islam in Anatolia^[63].

Death and Canonization (1359–1368)

Palamas died in Thessalonica on November 14, 1359. According to tradition reported by his disciple and biographer, his last words were: “To the heights! To the heights!”^[64]. He was canonized as early as 1368 by his former disciple, who had become Patriarch of Constantinople, Philotheos Kokkinos, who composed on this occasion his Encomium — the oldest and most detailed biographical source on his life — as well as the liturgical office still sung today in his honor^[65]. His feast day is set on November 14, and a second commemoration was instituted on the second Sunday of Great Lent, as a continuation of the preceding Sunday, the “Triumph of Orthodoxy”^[66].

Palamas was never explicitly condemned by a solemn act of the Catholic magisterium. However, his central doctrine — the real distinction between the divine essence and divine energies — has been, from his time until the 20th century, widely rejected by Catholic theologians as incompatible with a doctrinal point the Church holds as certain: the absolute simplicity of God^[67].

The Classical Catholic Critique: Divine Simplicity and Real Distinction

The ecumenical council of Vatican I, in its dogmatic constitution Dei Filius (1870), defines God as “a single, unique, absolutely simple and immutable spiritual substance”^[68]. This absolute simplicity means that in God there is no real composition: neither of matter and form, nor of substance and accidents, nor even — and this is the decisive point against Palamas — between His essence and His attributes, power, wisdom, or goodness. According to the classical formula of Catholic theology, “God is what He has”: His wisdom is not something He possesses in addition to His being; it is His very being, under an aspect that our limited intellect must conceptually distinguish to understand, without this distinction corresponding to a real plurality in God^[69].

It is precisely this point that theologian Martin Jugie attacked as early as 1932 in his long entry in the Dictionnaire de théologie catholique:

“In wanting at all costs to justify the claim of certain hesychasts to see God in this life, [Palamas] invented a theology that is condemned by the most elementary Christian philosophy and theology.” — Martin Jugie, article “Palamas Gregory,” Dictionnaire de théologie catholique, vol. XI/2, Paris, Letouzey et Ané, 1932, cols. 1735–1818^[70]

Jugie highlights three specific difficulties in the Palamite system: the violation of the principle of simplicity (God ceases to be absolutely “what He has” as soon as one really distinguishes in Him the essence and what proceeds from it); the risk of divine plurality, as Palamas sometimes speaks of several “deities” (theotêtes) regarding the energies, which borders on a certain conceptual ditheism; and the introduction of an intermediate category — energy as being “neither an accident nor a substance” — which classical metaphysics considers incoherent^[71].

A generation later, the Thomist theologian Charles Journet revisited the matter with more nuance in a lengthy article in the Revue thomiste:

“[Palamas] was truly a great man, of deep monastic and contemplative formation.” — Charles Journet, “Palamism and Thomism,” Revue thomiste, no. LX, 1960, pp. 429–452^[72]

But Journet maintains, in substance, the same objection as Jugie: in his view, it is not necessary to postulate a real distinction in God to account both for His transcendence and for the real participation of creatures in His life. Participation, he explains, can be thought of intentionally — a supernatural created quality in the soul (sanctifying grace) truly opens it to the horizon of divine life — without needing to multiply distinct uncreated realities within God’s essence itself^[73].

What the Catholic Church Also Firmly Holds: Uncreated Grace and Deification

However, it would be profoundly inaccurate to present Catholic theology as insensitive to what Palamas ultimately sought to safeguard: the reality of a true union with God and an authentic deification of man by grace. On this point, the Catholic tradition — from Saint Irenaeus to Saint Thomas Aquinas — is just as affirmative as the Byzantine tradition, albeit by a different path.

“The Son of God became man so that we might become God.” — Saint Athanasius of Alexandria, cited in the Catechism of the Catholic Church, no. 460^[74] “The only-begotten Son of God, wishing to make us partakers of His divinity, assumed our nature, so that, made man, He might make men gods.”
— Saint Thomas Aquinas, Opuscule 57, cited in the Catechism of the Catholic Church, no. 460^[75]

Where Palamas explains deification by direct participation in uncreated energies distinct from the essence, Catholic theology explains it by sanctifying grace — a truly supernatural and gratuitous gift, a created effect in the soul of the unique uncreated act by which God freely communicates Himself to His creature, without introducing the slightest composition into the divine being itself^[76]. The difference is therefore not between a theology that affirms real deification and one that denies it: both traditions affirm it with equal force. The difference lies in the metaphysical mode by which this union is realized without compromising the simplicity of God.

A more favorable reception in the 20th century

The Catholic judgment on Palamas, while remaining firm in substance, has nonetheless become considerably more nuanced in form during the 20th century. Several Catholic theologians, without abandoning attachment to divine simplicity, have proposed a more favorable reading, considering that Palamas aimed less at an absolute ontological distinction than a formal distinction, intended to preserve both the transcendence and accessibility of God — a reading that would bring his thought closer not to heresy, but to a legitimate theological pluralism between different Christian traditions that are not contradictory in substance^[77].

Pope John Paul II, without ever explicitly naming Palamas in a major magisterial document, greatly contributed to this climate of recognition by emphasizing, in his apostolic letter Orientale Lumen (1995), the centrality of theosis in Christian theology: “by the power of the Spirit dwelling in man, deification already begins on earth; the creature is transfigured and the Kingdom of God is inaugurated”^[78], summarizing the thought of Saint Irenaeus: “so that this Son of God would become Son of Man that man in his turn might become son of God”^[79]. The official notice of the Catholic Church in France on Gregory Palamas also cautiously acknowledges that “hesychast spirituality is currently adopted by many faithful of the Western Church”, while recalling that the theology itself “remains debated between East and West”^[80].

The Melkite case: a cult withdrawn, then restored

The most significant case of this evolution is found in the Melkite Greek Catholic Church, one of the Eastern Churches united with Rome. Before its full reunion with the See of Peter in the 1720s, the Melkite Patriarchate of Antioch honored Gregory Palamas in its liturgical calendar, as did the rest of the Byzantine world. After the reunion, it seemed prudent to remove his commemoration, judged too closely associated with an anti-Latin controversy; in 1843, Patriarch Maximos III Mazloom replaced this Sunday with the “Commemoration of the Holy Relics”^[81]. It was only in 1971, by decision of the holy synod of the Melkite Church convened at Ain Traz in August — the reintegration of his feast into the calendar of the Triodion, on the second Sunday of Lent^[82] — that the commemoration of Saint Gregory Palamas was restored to the Melkite liturgical calendar, in the ecumenical openness following the Second Vatican Council. The Melkite Church today explicitly affirms, on its official website, the Palamite doctrine of uncreated light and participation in the divine energies^[83] — proof that the question remains, even within full Catholic communion, a rare example of tolerated theological pluralism rather than a settled issue.

Hesychasm and the Jesus Prayer today

The practice of the Jesus Prayer, independently of the metaphysical debate on divine energies, enjoys a reach far beyond Orthodoxy: it is today practiced and taught in Catholic circles attentive to Eastern spirituality, in line with what was already broadly recalled by the letter Orientale Lumen^[84]. Palamas’s emphasis on inner silence, humility of heart, and perseverance in a brief continual invocation resonates with intuitions that Catholic tradition rediscovers, by other means, in the masters of prayer such as Saint John of the Cross or, more recently, in the practice of simple presence prayer.

Palamas and dialogue with Islam

The account Palamas left of his captivity and exchanges with Muslims in 1354–1355 remains one of the rare direct testimonies of a great Byzantine theologian personally confronted with the nascent Ottoman expansion in Asia Minor^[85]. Far from being a mere polemical document, this text shows a theologian capable of firmly presenting his faith while maintaining a real dialogue with his interlocutors — an attitude which, at least on this point, retains exemplary value.

• The Great Schism of the East — the historical context of the separation between Rome and Constantinople within which the entire Palamite controversy is situated.
• The Schism of Photius — the precursors, four centuries earlier, to the rupture consummated in 1054.
• The Fall of Constantinople (May 29, 1453) — a century after Palamas’s death, the end of the Byzantine Empire where his doctrine had become official.
• Responses to Orthodox Objections — the complete Catholic apologetic dossier addressing the positions of the Orthodox Church.