Constantine and the Freedom of the Church

The Great Persecution had just failed

The immediate context is the Great Persecution begun under Diocletian in 303. The imperial authorities targeted places of worship, Scriptures, clergy and Christian assemblies. Lactantius, a Christian witness deeply hostile to the persecutors, recounts this world where the destruction of a church at Nicomedia becomes the signal for an imperial offensive against Christianity.^[5]

The persecution did not succeed in wiping out the Church. Galerius himself, a former fierce opponent of Christians, published on 30 April 311 an edict of toleration. In it he acknowledges that many Christians had not been brought back to traditional cults and allows them to meet, provided they do not disturb public order. This first capitulation remains limited: it tolerates Christian existence, but does not fully settle the restitution of property or the legal recognition of the Church.^[6]

The Milvian Bridge gave Constantine a religious language

On 28 October 312, Constantine defeated Maxentius at the Milvian Bridge and became master of the West. Lactantius reports that before the battle the emperor received the order to mark shields with the heavenly sign of God. Eusebius of Caesarea would later develop the account of the vision of the sign of the Cross.^[7][8]

Historical discussion of Constantine's interior conversion remains open: his coins, his public vocabulary and his policy show a progressive transition, not a personal theological treatise. But the political fact is clear. After 312, Constantine presents himself as the emperor favoured by the God of the Christians and as the protector of a Church that has just emerged from violent persecution.

The right to follow the Christian religion publicly

The text known as the Edict of Milan is preserved by Lactantius and Eusebius. It was probably not a solemn edict promulgated at Milan, but a political agreement concluded between Constantine and Licinius, then published in the East as a rescript at Nicomedia on 13 June 313.^[9][10]

The central passage is broad: the emperors grant Christians and all others the freedom to follow the religion of their choice — a paraphrase of the rescript of 313, preserved in Latin by Lactantius and in Greek by Eusebius. Eusebius translates this decision as the refusal to deny religious freedom to each individual according to his judgment and desire.^[11][12]

"We have resolved to grant to Christians and to all men the freedom to follow the religion they choose." — Rescript of 313, transmitted by Eusebius of Caesarea

This is not yet the modern doctrine of religious freedom; the text remains formulated in the political language of divine favour toward the Empire. But its practical effect is decisive: being a Christian is no longer grounds for prosecution; the Christian assembly is no longer a suspect gathering; worship can emerge from precariousness.

The restitution of confiscated property

The freedom of the Church is not reduced to an interior permission. The rescript of 313 also orders the restitution of meeting places and property confiscated from Christian communities. Those who had bought this property may be indemnified by the treasury, but the community must recover what belonged to it.^[13]

This clause is crucial. It moves Christians from the status of a tolerated group to that of a recognizable social body. The Church can own houses, land, places of worship; it can reclaim them before the administration; it can rebuild. Freedom becomes visible in stone, archives, donations and disputes.

Recognition of the Catholic Church in Africa

Constantine's correspondence with the proconsul Anulinus and with Bishop Caecilianus of Carthage shows that the emperor is not thinking only of isolated Christian individuals. He distinguishes the Catholic Church as an organized ecclesial body. Eusebius preserves a letter ordering that what belonged to the Catholic Church of the Christians be restored without delay.^[14]

Another letter provides financial aid for the Church in Africa. Constantine asks that the money be given to Caecilianus, Bishop of Carthage, and allows him to report any administrative opposition to the authorities.^[15] The emperor thus recognizes an episcopal interlocutor and an ecclesial network. This is an immense change for an institution that, a few years earlier, could see its buildings destroyed by imperial order.

Exemption of the clergy

From 313, Constantine granted the Catholic clergy of Africa exemption from heavy public burdens. Eusebius transmits the letter to Anulinus: the ministers of the Catholic religion must not be diverted from their divine service by civil obligations that would prevent them from fulfilling their ministry.^[16]

The privilege is not only fiscal. In Roman cities, municipal charges could be costly and burdensome. Exempting clerics means recognizing that their religious service has a public utility and that the State must leave them time to exercise their function. The Catholic Encyclopedia summarizes the movement: the Church progressively obtained immunities, the capacity to inherit and the public protection of Sunday.^[17]

Basilicas and Christian visibility

After 313, Constantine also supported the construction and restoration of churches. In the Life of Constantine, Eusebius quotes a letter in which the emperor asks bishops to repair, enlarge or build places of worship, with the financial support of governors and the praetorian prefect.^[18]

This visibility transforms the Christian experience. Communities that had celebrated in houses, cemeteries or fragile places could now erect public basilicas. Rome, Jerusalem, Bethlehem and Constantinople would soon bear the monumental marks of this new situation. The Christian liturgy was not born with Constantine, but it received a lasting public space.

Sunday under civil protection

The law of 321 on the Day of the Sun makes rest obligatory for judges, city dwellers and workshops, while leaving agricultural work possible when the season requires it. The text uses the civil vocabulary of dies Solis, not a developed theology of the Christian Sunday.^[19]

Two excesses must therefore be avoided. Constantine did not invent the Christian Sunday: celebration of the first day is attested well before him in Christian tradition. But he gave this day a new civil protection. The State began to organize social time in a way that favours, at least indirectly, Christian practice.

Donatism: the first ecclesial case brought before the prince

The first major test was the Donatist crisis in Africa. After the election of Caecilianus at Carthage, his opponents contested his legitimacy by invoking the question of the traditores, those who had allegedly handed over the Scriptures during the persecution. Constantine first entrusted the case to Miltiades, Bishop of Rome, with other bishops; then, after contestation, he convened a council at Arles for 1 August 314.^[20][21]

The convocation letter to Arles is revealing. Constantine wanted to end a division that made the Christian religion ridiculous before the pagans; he ordered the transport of bishops with public vehicles; he sought an ecclesial decision broader than the first Roman judgment.^[22]

A two-sided precedent

The precedent has two sides. On one hand, Constantine did not decide alone as a theologian: he referred the conflict to bishops gathered in synod. On the other, it is he who materially organized the procedure, chose the imperial framework and received appeals. The freedom granted to the Church very quickly became a freedom monitored by an emperor who wanted religious unity as a factor of civil peace.

The Donatist dossier already announces a lasting tension. The Church gains protection, but its internal conflicts attract the civil power. Bishops obtain new resources, but they must learn not to confuse pastoral decision, conciliar judgment and imperial arbitration.

Constantine convenes, the bishops define

In 325, Constantine convened the Council of Nicaea I to answer the Arian crisis. The doctrinal division in the East threatened the unity of the Church and, in the eyes of the emperor, the peace of the Empire. Eusebius reports that Constantine provided transport and hospitality for the bishops; he entered the assembly with solemnity and sought their agreement.^[23][24]

The council did not vote on the canon of the Bible and did not invent the divinity of Jesus.^[25] It answered a precise controversy: is the Son true God, begotten not made, of the same substance as the Father? The doctrinal answer is episcopal and conciliar, even if the material framework is imperial.^[26]

The temptation of peace before doctrinal precision

Constantine sought concord above all. This intention is understandable after years of civil war and persecutions. But it contains a weakness: the emperor sometimes tended to treat doctrinal conflicts as quarrels that political authority must appease. The later history of Arianism would show that external peace is not enough if the words of the faith remain ambiguous.^[27]

The freedom of the Church therefore does not consist only in no longer being persecuted. It also requires that the Church be able to speak the truth of the faith without reducing dogma to public peace. Nicaea is the positive example: imperial support made a universal assembly possible; the content of the faith did not come from the emperor.

He did not make Christianity the official religion in 313

The most frequent confusion is to mix up 313 and 380. In 313, Constantine and Licinius granted religious freedom and the restitution of property. In 380, the Edict of Thessalonica of Theodosius, Gratian and Valentinian II gave the Nicene Catholic faith an official status in the Empire.^[28]

Between these two dates there are sixty-seven years: Nicaea, the Arian crises, the varying policies of the sons of Constantine, debates on the Holy Spirit and finally Constantinople I. Constantinian freedom opens a process; it is not yet the full legal Christianization of the Empire.

He did not create the Church

Constantine did not create bishops, apostolic succession, the Eucharist, baptism, the New Testament, the confession of Christ as Lord or the memory of martyrs. All this existed before him. The letters he addressed to Caecilianus or Anulinus even presuppose a Church already structured, with clergy, property, disputes, hierarchy and discipline.^[29][30]

This distinction is essential against the modern myth of a Christianity fabricated by imperial decree. Imperial power did not invent the faith; it changed the legal environment in which this faith could act.

He did not remove all risks of persecution

The freedom granted in 313 remained fragile. Licinius, co-signatory of the agreement, later became Constantine's adversary. Eusebius presents him as relapsing into hostility toward Christians before his final defeat.^[31]

Even after Constantine, the Church would experience other pressures: Arian emperors, interventions in episcopal appointments, exiles of bishops, conflicts over councils. The freedom of the Church was never definitively guaranteed by the favour of a prince. It depended more deeply on the Church's fidelity to its mission and on the civil power's recognition of a spiritual domain it cannot absorb.

A real historical liberation

The first legacy is simple: the Church does not normally live under threat. Martyrs manifest the victory of faith over violence, but persecution is not a political ideal. The peace of 313 allowed the Church to build, catechize, care for the sick, administer the goods of the poor, organize councils and evangelize publicly.

Christianity did not become true because Constantine protected it. It could, however, deploy its mission more widely when the State ceased to treat it as an enemy. This is why Christian memory often saw in Constantine a providential instrument, even when historians recall the ambiguities of his policy.

A lasting warning

The second legacy is a warning. Any political protection can become pressure. Any material aid can become dependence. Any imperial will for peace can become doctrinal control. The fourth century therefore gives the Church a double lesson: to receive freedom with gratitude, but to keep its own voice.

The true Catholic criterion is not to choose between an invisible Church and a Church absorbed by the State. It is to hold together the public visibility of the Church and its spiritual freedom. Constantine opened the door to a new era; he did not settle the question for all time.

• The Edict of Milan — the text of 313, its context and its restitution clauses
• The Christian Catacombs of Rome — Christian memory before the Constantinian peace
• Council of Nicaea I — the first ecumenical council under Constantine
• Council of Constantinople I — the Nicene reception after the Edict of Thessalonica
• The Persecutions of Nero — a contrast with the situation opened in 313