Pelagianism, Free Will, & the Theological Argument That Never Ended

The Council of Carthage declared Pelagius a heretic in 418 CE. The argument he was condemned for has not stopped since.  It resurfaces in every theological tradition that takes seriously the question of human moral responsibility — including Islam, which arrived centuries later and proceeded to have the same argument with considerable vigour.

The Man and the Controversy

Pelagius was a British monk — his origins are debated, but the sources consistently place him as coming from the British Isles — who arrived in Rome around 380 CE and built a significant reputation as an ascetic and moral teacher.  His public life was austere.  His rhetoric was persuasive.  Bishop Aurelius Augustinus Hipponensis called him a saintly man before calling him a heretic.  The transition between those two assessments tells you something about the intensity of the theological stakes involved.

Bishop Augustine of Hippo summarised it in The Spirit and the Letter IV: “There is an opinion that calls for sharp and vehement resistance — I mean the belief that the power of the human will can of itself, without the help of God, either achieve perfect righteousness or advance steadily towards it.”

Pelagius denied that Adam’s sin had transmitted a corrupted nature to all of humanity.  He denied that human beings entered the world already wounded, already inclined toward sin in ways that exceeded their capacity to resist without divine intervention.  He affirmed that human beings were morally capable — capable of choosing good or evil, and therefore fully responsible for what they chose.  The practical implication of his position was thus: if humanity is capable of righteousness without special Divine Aid, then grace is not a transformation of wounded human nature but an external instruction — the declaration of the law, the example of Jesus, the knowledge of what good looks like.  This reduced grace from a healing and empowering intervention to an educational one.

For Augustine, the Fall had genuinely damaged human nature — not merely set a bad example, but corrupted the will at its root, such that human beings were not merely ignorant of the good but incapable of consistently choosing it without Divine Assistance.  Grace was, therefore, not instruction but transformation — the Holy Spirit working within the heart to produce the delight in God that makes righteousness not merely possible but actual.

The Church Fathers on Free Will

What makes the Pelagian controversy genuinely complicated is that Pelagius was not inventing a novel position.  He was drawing on a tradition of emphasis on human free will that runs through the early Church Fathers.  Quintus Septimius Florens Tertullianus, the second-century North African theologian who gave Latin Christianity much of its vocabulary, wrote that no reward can be justly bestowed and no punishment justly inflicted upon one who is good or bad by necessity rather than by choice.  Tertullianus built the argument from justice: a God who condemns people for choices they could not have made otherwise is not a just God.  The existence of Divine Judgement requires the prior existence of genuine human freedom.

Marcus Minucius Felix’s contemporary, Justin Martyr, the second-century Palestinian philosopher and apologist, was equally direct.  He wrote that if all things happen by fate, then nothing is in human power, and if nothing is in human power, then neither praise nor blame is coherent.  He went further: humans were not created wicked by God’s fault but became what they are through their own fault.  The responsibility lies with the agent, not the Creator.  Tatian the Syrian, Patriarch Theophilus of Antioch, Bishop Melito of Sardis, and Bishop Irenaeus of Smyrna all affirm the same position with variations in emphasis.  Irenaeus, writing in the second century, described the human being as “his own cause” of what he becomes, “sometimes wheat, and sometimes chaff.”

This is not a marginal position in the early Church.  It is the dominant position of the patristic tradition prior to Augustine.  What Augustine did, with consequences that shaped Western Christianity for a millennium, was shift the centre of gravity toward a more radical account of human incapacity and divine sovereignty.

What Pelagius Actually Taught

The problem with evaluating Pelagius is the problem he himself identified: most of his writings survive only in the quotations of his opponents.  Bishop Augustine quotes him to refute him.  The Council of Carthage condemns him without preserving his full arguments.  The heretic’s own voice is filtered through the prosecutorial record.

What does survive is instructive.  Pelagius was not arguing that human beings could live righteously without God.  He was arguing that God had given humanity the capacity for righteousness and that this capacity was real and operative — that to claim human beings were incapable of choosing good was to impugn the justice of divine commandment.  As he wrote, “Why do we indulge in pointless evasions, advancing the frailty of our own nature as an objection to the One Who Commands us?  No one knows better the true measure of our strength than He Who has Given it to us.”

This is not the position of someone who dismisses Divine Grace.  It is the position of someone who takes Divine Justice seriously enough to insist that commandment and capacity must correspond.  A God who commands what human beings cannot do is not a just God.  He also wrote that Grace “freely discharges sins, but with the consent and choice of the believer.”  The emphasis on consent is not the elimination of Grace.  It is the insistence that Grace operates on free agents rather than replacing their freedom.

The more recent scholarly reassessment of Pelagius — acknowledging that some have defended him as a misunderstood orthodox — reflects a genuine recognition that the condemnation of Pelagianism may have been as much a political and ecclesiastical event as a purely theological one.  Bishop Augustine’s influence on the Council of Carthage was substantial.  The outcome of the Council was not inevitable from the theological arguments alone.

The Pauline Foundation

The Augustinian position draws its primary scriptural support from the letters of Paul of Tarsus — specifically from the passage in 1 Corinthians 15:19-22: “Just as all have died with Adam, so with Christ all will be brought to life.”

In the original Greek: ὥσπερ γὰρ ἐν τῷ Ἀδὰμ πάντες ἀποθνῄσκουσιν, οὕτως καὶ ἐν τῷ Χριστῷ πάντες ζῳοποιηθήσονται.

In the Latin Vulgate: “Et sicut in Adam omnes moriuntur, ita et in Christo omnes vivificabuntur.”

The parallel structure is the theological argument: death through Adam, life through Christ.  If Adam’s sin merely set a bad example, as Pelagius maintained, then Christ’s redemption merely sets a good example in return.  The symmetry of the Pauline argument requires that Adam’s sin did something more than provide a negative model, and that Christ’s redemption does something more than provide a positive one.  This is the exegetical core of the Augustinian position.  It is also the point at which Islam’s subsequent treatment of the same questions takes a distinct path.

The Islamic Parallel

Pelagianism’s position on human will was, as the document observes, echoed by Islam, though the correspondence is structural rather than derivative.  The Islamic theological tradition arrived at the free will question through its own internal debates and reached conclusions that sit closer to the Pelagian emphasis on human moral capacity than to the Augustinian emphasis on radical human incapacity.

The Qur’an is unambiguous on the absence of inherited sin.  Surah al-An'am (6:164) states: وَلَا تَزِرُ وَازِرَةٌ وِزْرَ أُخْرَىٰ — “No soul shall bear the burden of another.”  Adam sinned.  Adam repented.  Allah Forgave him.  The sin did not transmit.  Subsequent human beings are not born guilty of Adam’s transgression.

Islam does not have a doctrine of Original Sin in the Augustinian sense.  Human beings are born in a state of فطرة (fithrah) — the primordial nature, the innate orientation toward the divine — which is subsequently shaped by environment, upbringing, and choice.  However, and this is where the parallel with Pelagianism reaches its limit, Islam does not hold that human beings are capable of righteousness without Divine Assistance.  The five daily prayers, the guidance of Revelation, the intercession of the Prophet, the barakah of the awliya’, and ultimately the Mercy of Allah are all understood as necessary conditions for sustained righteousness, not merely helpful additions to a self-sufficient human capacity.

The Mu’taziliyyah, the rationalist theologians of the eighth and ninth centuries, pushed the free will argument furthest, insisting that Divine Justice requires genuine human freedom and that human reason is capable of determining moral obligations independently of revelation.  The mainstream Ash’ariyyah and Maturidiyyah schools, which became the dominant theological frameworks of Sunni Islam, held a more nuanced position: human beings possess genuine agency and real moral responsibility, but their capacity operates within and through the Divine Will, not independently of it.  This is structurally closer to the position Bishop Augustine was defending than to the position Pelagius was advancing — though the theological vocabulary, the soteriology, and the metaphysical frameworks are entirely distinct.

The Question That Remains

The Pelagian controversy was never really resolved.  It was condemned.  Those are different things.  The condemnation settled the institutional question — Pelagianism was declared heretical and excluded from Catholic orthodoxy.  It did not settle the philosophical question, which is whether genuine moral responsibility is coherent without genuine moral freedom, and whether genuine moral freedom is coherent if human beings are radically incapable of exercising it without prior divine transformation.

Every subsequent Western theological debate about Grace, free will, predestination, and Divine Sovereignty — from the Calvinist-Arminian controversies of the sixteenth century, to the Jansenist controversies of the seventeenth, to the contemporary debates within Evangelical Protestantism about election and responsibility — is a recurrence of the same argument that Bishop Augustine and Pelagius conducted in the fifth century.  The argument recurs because the tension it articulates is genuine.  Divine sovereignty and human responsibility are both affirmed in every theological tradition that takes scripture seriously.  The relationship between them remains, after seventeen centuries of theology, genuinely difficult.

Pelagius was wrong about several things.  He may have been more right than the Council of Carthage acknowledged about several others.  The scholars who have recently defended him as a misunderstood orthodox are not obviously wrong.  What is certain is that the question he raised — whether human beings can do good without divine help, and what the answer implies for moral responsibility — is not a question that stays answered when a Council declares it heresy.  It simply goes underground for a generation, and then resurfaces in different terminology with the same stakes.