Hellenization thesis

The Hellenization thesis, popularized by the German church historian Adolf von Harnack, holds that the church’s classical doctrine of God, confessed at Nicaea and standard in Christian theology ever since, took its essential content not from Scripture but from imported Greek philosophical categories, so that “dogma in its conception and development is a work of the Greek spirit on the soil of the Gospel.”¹ On this reading, the confession of the Trinity, the Logos made flesh, and attributes such as divine simplicity and impassibility are Hellenistic accretions rather than conclusions the apostles themselves taught.

Historical Origin

Harnack developed the thesis across his multivolume History of Dogma (1886-89), part of a broader late-nineteenth-century liberal Protestant project he shared with Albrecht Ritschl.² Both worked within the epistemology Immanuel Kant had bequeathed to nineteenth-century theology, which denied that the mind could know anything of God beyond moral conviction and the world of sense experience; rather than defend the church’s historic dogmas on those terms, Ritschl and Harnack sought instead to detach Christianity from what they called “Greek metaphysics” altogether, relocating its essence in an inward, ethical “kingdom of God” and proposing a this-worldly program of social reform in place of the doctrine of sin and salvation through Christ’s atoning death.²

Core Tenets

Harnack located the essence of Christianity in a general moral conviction: that God is a loving Father, that all people are brothers and sisters, and that the kingdom of God is realized within an individual’s soul rather than in any external, dogmatic form.³ The church had long treated other doctrines as equally basic to its confession of who God is: the Trinity, the Son’s being “of one substance” (homoousion) with the Father, and attributes such as divine simplicity, immutability, and impassibility. On this account these too are read as borrowings from Greek metaphysical categories like being and substance rather than conclusions drawn from apostolic teaching. The thesis outlived its originator: Brian McLaren, writing from within evangelicalism itself, was still presenting it as a fresh discovery in the early twenty-first century.²

Confessional and Biblical Response

The very doctrines the thesis treats as Hellenistic imports are the ones the 1689 Second London Baptist Confession states as its own reading of Scripture. It confesses one God “of one substance, power, and eternity, each having the whole divine essence, yet the essence undivided,”⁴ and describes that God as “immutable… a most pure spirit, invisible, without body, parts, or passions.”⁵ Bavinck’s answer to Harnack begins from a simple observation: rejecting one set of dogmas is not an escape from dogma but an exchange of one for another. “Harnack did not repudiate all dogma but simply substituted a new dogma for the old dogmas of historic Christianity,” since “a non-dogmatic Christianity, in the strict sense of the word, is an illusion.”³ Doctrines “said to prove the admixture of Greek philosophy,” including the Logos, the Trinity, and the first and second Adam, are, Bavinck argues, found in substance already in Scripture, whether or not in so many words.⁶

The historical claim fares no better under closer examination. Carter shows that the fathers did not read Scripture into a Greek metaphysical mold; they exegeted the biblical text first, drew out its implications, and only then used philosophical vocabulary, critiquing and correcting it as they went, to state what that exegesis had already established, an approach nearer to what Robert Wilken calls “the Christianization of Hellenism” than the reverse.² John’s Gospel supplies the clearest example: the term logos was current in Stoic philosophy for an impersonal principle of reason immanent within the cosmos, but John identifies the Logos as personal, as God, and as its transcendent maker: “In the beginning was the Word, and the Word was with God, and the Word was God… All things were made through him” (John 1:1-3), a claim, Carter observes, “Greek philosophy never in its wildest dreams could ever have imagined.”²

Paul Gavrilyuk’s study of the question, as Carter reports it, gives the thesis “a decent burial” on two grounds. First, it treats “Greek philosophy” as though it held one settled view on whether God can change or suffer, when Greek thought in fact contained contradictory positions on the question, leaving no single “Greek” view to have been imported. Second, it oversimplifies Scripture’s own witness, which affirms both that God does not change (Ps. 102:26; Mal. 3:6; Heb. 1:11-12; James 1:17) and that God relents (Gen. 6:5-7; Exod. 32:12-14; Ps. 106:45), a tension calling for careful interpretation on any reading, not evidence that confessing immutability is Greek while denying it is biblical.² Michael Haykin, following Jaroslav Pelikan’s own critique of Harnack, presses the point further: closer inspection finds “the deepest impress of Hellenization” not in the doctrine the fourth-century fathers defended but in the various rival systems they opposed.²

Modern Forms

Harnack did not write in isolation, and the thesis did not end with him. Duby traces a line of theologians who rejected a “metaphysical” doctrine of God as incompatible with genuine biblical theology back to Ritschl himself, alongside Wilhelm Herrmann and Hermann Cremer, continuing into the twentieth century through Robert Jenson’s and Bruce McCormack’s arguments that God’s being is constituted by his historical acts rather than complete in himself prior to them.⁷ McLaren’s early-twenty-first-century “discovery” of the same thesis Harnack had popularized over a century earlier shows the claim persisting well outside the liberal Protestant setting in which it began.²

Related Doctrines

Adolf von Harnack, History of Dogma, trans. Neil Buchanan, James Millar, E. B. Speirs, and W. McGilchrist, ed. A. B. Bruce, 7 vols. (London: Williams & Norgate, 1896-99), 1:17, quoted in Herman Bavinck, Reformed Dogmatics: Abridged in One Volume, ed. John Bolt (Grand Rapids: Baker Academic, 2011), chap. 2, “The History and Literature of Dogmatic Theology,” n. 1. ↩
Craig A. Carter, “The Biblical Character of Pro-Nicene Theology,” in Contemplating God with the Great Tradition: Recovering Trinitarian Classical Theism (Grand Rapids: Baker Academic, 2021), chap. 7. ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸
Herman Bavinck, Reformed Dogmatics: Abridged in One Volume, ed. John Bolt (Grand Rapids: Baker Academic, 2011), chap. 1, “Dogmatic Theology as a Science.” ↩ ↩²
The Second London Baptist Confession of Faith (1689), chap. 2, “Of God, and of the Holy Trinity,” para. 3. ↩
The Second London Baptist Confession of Faith (1689), chap. 2, “Of God, and of the Holy Trinity,” para. 1. ↩
Herman Bavinck, Reformed Dogmatics: Abridged in One Volume, ed. John Bolt (Grand Rapids: Baker Academic, 2011), chap. 6, “Faith.” ↩
Steven J. Duby, God in Himself: Scripture, Metaphysics, and the Task of Christian Theology, Studies in Christian Doctrine and Scripture (Downers Grove, IL: IVP Academic, 2019), chap. 4, “Theology and Metaphysics Revisited,” 194-97. ↩