Position · 411

Pelagianism

The view that humans can choose good and obey God by their own natural powers: Adam’s sin set a bad example but did not damage human nature, so grace helps but is not strictly necessary.

History

Roots

Pelagius was a lay ascetic from Britain who taught in Rome from the 380s or 390s. He was not a speculative theologian. His concern was moral: wealthy Roman Christians who had been baptized but lived as before, and who excused themselves by saying human nature was too weak to obey. Pelagius answered that God does not command the impossible. If God says “be perfect” (Matthew 5:48), then perfection must be within reach.

He was reportedly provoked by a line from Augustine’s Confessions: “Give what You command, and command what You will” (10.29). To Pelagius this sounded like moral passivity, waiting on God for a will to obey. Augustine later recounted the incident himself (On the Gift of Perseverance 20.53, 428–429). Pelagius drew on an ascetic tradition that stressed free will against Manichaean fatalism, and on Eastern writers who had never developed a strong doctrine of inherited sin.

Causes

The dispute became a church case after the Gothic sack of Rome in 410 sent Pelagius and his associate Celestius to North Africa. Pelagius moved on to Palestine. Celestius stayed in Carthage, where a synod in 411 condemned him for teaching that Adam would have died anyway, that his sin harmed only himself, and that newborn infants are in the same state Adam was in before the fall. That synod is the date usually given for the start of Pelagianism as a named error.

Augustine began writing against these ideas in 412 with On the Merits and Remission of Sins (New Advent) and On the Spirit and the Letter (New Advent). In 415 he answered Pelagius’s own treatise On Nature, now lost, with On Nature and Grace (New Advent). Jerome, then in Bethlehem, attacked Pelagius in his letter to Ctesiphon (Letter 133) and his Dialogue against the Pelagians (New Advent).

In the East, Pelagius fared better. A synod of fourteen bishops at Diospolis (Lydda) in December 415 acquitted him after he disowned several propositions attributed to Celestius. Augustine read the acts and argued that the bishops had cleared a Pelagius who misrepresented his own views (On the Proceedings of Pelagius, 417). African synods at Carthage and Milevis appealed to Pope Innocent I, who condemned both men in 417. Innocent’s successor Zosimus reopened the case and at first leaned toward acquittal. The African bishops held a general council at Carthage on 1 May 418, and the emperor Honorius issued a rescript against the Pelagians that spring. Zosimus then condemned them in his circular letter, the Tractoria (418).

The Council of Carthage of 418 issued the canons that became the Western definition of the error (canons 109–116 in the African Code). They condemned the claims that Adam was created mortal, that infants do not need baptism for the remission of an original sin, and that grace only reveals what we ought to do without giving the power to do it. The Council of Ephesus in 431 added an Eastern condemnation, deposing clergy who held “the doctrines of Nestorius or Celestius” (canons 1 and 4). The link to Nestorius was partly political: he had given refuge to Pelagian exiles in Constantinople.

Influence

Pelagius himself disappears from the record after about 418. The debate went on without him. Julian of Eclanum, an Italian bishop who refused to sign the Tractoria, argued with Augustine until Augustine’s death in 430, pressing him on whether inherited guilt made God unjust. Augustine’s answers hardened into his mature doctrines of original sin, irresistible grace and predestination.

That hardening set off a second round. Monks in southern Gaul, led by John Cassian, accepted that grace was necessary but rejected Augustine’s predestination. Cassian argued that the beginning of a good will can come from us, with God answering it, though God also sometimes moves first (Conference 13). Prosper of Aquitaine defended Augustine against them. The Second Council of Orange (529), led by Caesarius of Arles and approved by Pope Boniface II in 531, ruled that even the beginning of faith is a gift of grace. It also rejected predestination to evil and said nothing about irresistible grace. Later writers called the Gallic position “Semi-Pelagianism,” a label from the sixteenth century, not the fifth (Catholic Encyclopedia, “Semipelagianism”, secondary).

Through Carthage and Orange, the Pelagian controversy fixed the Western vocabulary of original sin and grace, and with it the frame of later Western arguments about Salvation. It also gave Western theology its standard insult. From the Middle Ages to now, calling an opponent “Pelagian” or “semi-Pelagian” has been a way of saying they give human effort too much credit.

Key ideas and contributors

Nature is good and stays good. Pelagius held that God created human nature good and that sin cannot change a nature, since sin is an act, not a substance. Each person is born as Adam was created, able to choose good or evil. The capacity not to sin is part of how God made us.

Adam’s sin spreads by example. Death and sin entered the world through Adam (Romans 5:12), but on the Pelagian reading they spread by imitation, as people copy a bad pattern. Pelagius’s Commentary on Romans, which survived under Jerome’s name, reads the passage this way (English translation by Theodore de Bruyn, Oxford, 1993). The prophet’s rule that “the son shall not suffer for the iniquity of the father” (Ezekiel 18:20) seemed to rule out inherited guilt. Infant baptism was then a blessing into Christ’s kingdom, not a washing away of sin inherited from Adam, which is why Infant Baptism became a test case.

Grace is given, but outside the will. Pelagius did speak of grace, which is why his acquittal at Diospolis was possible. He meant the gift of free will itself, the law, the teaching and example of Christ, and the forgiveness of past sins in baptism. Augustine reported his distinction between the ability to act (posse), which comes from God, and the willing and doing (velle, esse), which belong to us (On the Grace of Christ 1.4–5). Augustine’s objection was that this grace teaches and assists but never changes the heart.

Perfection is possible, so it is required. The Letter to Demetrias (413), written to a young Roman aristocrat who had taken a vow of virginity, is the clearest statement of Pelagius’s moral vision: a call to strenuous holiness based on confidence in human nature. It too was long transmitted under another author’s name.

Celestius pushed further. Most of the propositions condemned at Carthage came from Celestius, who stated the denial of original sin more bluntly than Pelagius. Julian of Eclanum gave the movement its most systematic defense, arguing that concupiscence is natural and that guilt without personal choice is unjust.

Augustine’s reply. Against all of them, Augustine argued that Adam’s sin wounded the whole race, so that every person is born guilty and with a will bent toward self. Grace must do more than instruct: it has to heal the will and give the love that obeys. His key texts were “apart from me you can do nothing” (John 15:5), “God works in you, both to will and to work” (Philippians 2:13), and “what do you have that you did not receive?” (1 Corinthians 4:7), which he made central in On the Predestination of the Saints. His later treatise On Grace and Free Will (426) defends grace without denying the will. The Catholic Encyclopedia’s “Pelagius and Pelagianism” (secondary, 1911) gives a detailed narrative from the Catholic side.

Key controversies

Was there ever a Pelagianism? Recent scholarship has questioned whether the system Augustine attacked matches any real group. B. R. Rees, Pelagius: A Reluctant Heretic (1988), portrayed Pelagius as a moral reformer pulled into a doctrinal fight. Ali Bonner, The Myth of Pelagianism (2018), argues that Pelagius’s views on free will were the common ascetic teaching of his day, that there was no organized movement, and that “Pelagianism” was largely constructed by its opponents. Critics answer that Pelagius’s own surviving writings do deny inherited sin, whatever he conceded at Diospolis. Bonner’s thesis is still disputed (secondary; neither book linked).

How far Augustine was right. The condemnation of Pelagius is settled in the Roman Catholic and Protestant West, but Augustine’s full position is not. Orange endorsed the necessity of prevenient grace without endorsing his predestination. The Eastern Orthodox tradition condemned Celestius at Ephesus but never adopted Augustine’s account of inherited guilt, and it venerates John Cassian as a saint. Its language of cooperation between grace and freedom, framed by Theosis, has often been labelled semi-Pelagian by Western critics, a charge Orthodox writers reject as reading the East through a Western dispute.

The charge in the Reformation. Martin Luther accused late medieval theology of Pelagianism, and his Bondage of the Will (1525) argued against Erasmus that the fallen will cannot turn itself to God. The Reformation made the charge a dividing line. The Lutheran Formula of Concord (1577) rejected both “the gross Pelagians” and “the Semi-Pelagians, who teach that man by his own powers can make a beginning of his conversion” (Epitome II). The Council of Trent answered that Catholic teaching is not Pelagian, condemning anyone who says a person can be justified by their own works “without the grace of God through Jesus Christ” (Session 6, canons 1–3). Protestants have kept the charge alive against Catholic doctrines of merit; Catholics reply that merit is itself God’s gift. See Catholic Justification and Lutheran Justification.

Calvinists and Arminians. The Synod of Dort (1618–1619) accused the Remonstrants of reviving the heresy: their teaching on conditional election “smacks of Pelagius,” and on universal atonement they “summon back from hell the Pelagian error” (Canons of Dort). Arminianism replies that it affirms total depravity and the necessity of grace as firmly as Calvinism does; the difference is that it holds prevenient grace frees every person’s will to accept or resist. John Wesley and the Methodist tradition built on this. Charles Finney’s nineteenth-century revival theology, which said sinners could repent by their own choice, drew the Pelagian charge from Princeton critics such as Charles Hodge.

Modern “neo-Pelagianism.” Pope Francis named “contemporary Pelagianism” as one of two “subtle enemies of holiness,” describing Christians who trust in their own powers and in rule-keeping (Gaudete et Exsultate §47–62, 2018). The Congregation for the Doctrine of the Faith’s Placuit Deo (2018) applied the term to modern individualism and self-made salvation. Some critics think the word has become too loose to mean anything; its defenders say the old error survives mostly in practice, not in doctrine.

What remains unresolved

No church teaches Pelagianism, so the live question is not whether Pelagius was wrong but where the boundary sits. Everyone agrees grace is necessary. They disagree on whether grace must start the process, whether it can be resisted, and whether a human response that God enables counts as a human contribution. Each side’s position looks safely orthodox from inside and “semi-Pelagian” or “determinist” from outside. The historical question is also open: how much of the heresy belongs to Pelagius, and how much to the picture Augustine needed to fight.