Theophilus of Antioch: Exploring the Divine Through Creation

What does it mean to know a God who is, by definition, beyond all knowing? This is not a modern paradox – it was the central challenge that Theophilus, Bishop of Antioch in the second century, set out to resolve. Writing to a skeptical pagan friend, he produced one of early Christianity’s most philosophically ambitious arguments: that the invisible God is genuinely knowable, not through direct vision, but through the evidence of His works. His ideas shaped the language of Christian theology in ways that still echo today.

Who was Theophilus of Antioch? 🔗

Theophilus of Antioch was a Syrian saint and Christian apologist of the second century. Born into a pagan family near the Tigris and Euphrates rivers in what is now modern Iraq, he converted to Christianity as an adult following extended deliberation, and by around 169 CE had been elected as bishop of Antioch – one of the most important centers of early Christianity. His episcopate coincided with the reign of Emperor Marcus Aurelius, a period marked by both philosophical ferment and intermittent pressure on Christian communities.

He is described by Philip Schaff’s Ante-Nicene Fathers as a figure “intimate in spirit to Justin and Irenaeus” – severe in his critique of paganism, yet genuinely engaged with the intellectual questions of his time. Theophilus was, as Schaff notes, “content to be, simply and altogether, nothing but a Christian.” His only surviving work is a trilogy of books addressed to a pagan acquaintance named Autolycus, collectively known as Ad Autolycum – or To Autolycus.

The occasion for To Autolycus 🔗

The work opens with Theophilus responding to Autolycus’s mockery of Christianity and his boasts about pagan gods – idols made of wood and stone that “neither see nor hear.” Rather than simply arguing back, Theophilus makes a surprising move: he asks Autolycus to first show him himself – his character, his soul – before demanding that Theophilus show him God. The point is deliberate. God, he argues, is not the kind of being who can be shown on demand, because the divine is not perceivable through bodily eyes in the first place.

According to Ecclesiastical History, the three treatises show a clear development: the first addresses a hostile reader, the second shifts to skepticism and provides an extensive commentary on Genesis, and the third turns more directly to issues of morality and chronological argument. Together, they constitute not merely a defense of Christianity but what scholars describe as a protreptic work – designed to persuade an educated audience to adopt a biblical worldview and way of life.

God’s nature: incomprehensibility as a starting point 🔗

The most philosophically striking feature of Theophilus’s theology is his insistence on divine incomprehensibility – and that he treats this not as a problem, but as a point of departure. In To Autolycus Book I, he describes God’s appearance as “ineffable and indescribable.” His account of the divine attributes is sweeping: in glory God is incomprehensible, in greatness unfathomable, in height inconceivable, in power incomparable, in wisdom unrivalled, in goodness inimitable, in kindness unutterable. Every attribute points upward – beyond the reach of ordinary human language or perception.

This is not theological pessimism. Theophilus is not saying God is unknowable and therefore irrelevant. He is making a more precise claim: that God’s essence exceeds human grasp, but that this does not prevent knowledge of God altogether. The very scale of divine attributes – the fact that no human category can fully contain them – is itself revealing. It tells us that whatever God is, He stands entirely outside the created order. Theophilus also argues that terms like “Light,” “Word,” or “Spirit” only approximate God’s works, and are not adequate descriptions of His inner essence – underscoring the limits of human language when reaching toward the divine nature.

God as unbegotten and eternal 🔗

Theophilus connects incomprehensibility with eternity. God has no origin and no end. He is “without beginning, because He is unbegotten; and unchangeable, because He is immortal.” This matters philosophically because it sets God apart from everything in the created universe, which is subject to birth, change, and decay. God exists outside of time entirely. For Theophilus, divine eternity is not just a duration – it is a mode of being that places God in a fundamentally different ontological category from creation.

This contrasts sharply with the pagan philosophers Theophilus critiques. In Book II of To Autolycus, he surveys the contradictions among Greek thinkers on the question of God and the origin of the world. Some deny providence altogether; others claim the world is uncreated and eternal; Plato’s school acknowledges an uncreated God but also posits uncreated matter, which for Theophilus undermines the very concept of divine sovereignty. These inconsistencies, he argues, demonstrate that pagan philosophy – working by “conjecture and human conception” – could not arrive at the truth on its own.

The ship and the pilot: knowing God through creation 🔗

So how, on Theophilus’s account, can God be known? His answer turns on the relationship between the invisible and its visible effects. He offers a concrete image: just as a person who sees a ship rigged and sailing toward a harbor naturally infers that there is a pilot guiding it, so we can perceive God as the governor of the universe even though He cannot be seen directly. In his own words, God “cannot indeed be seen by human eyes, but is beheld and perceived through His providence and works.”

This is an early and explicit version of what would later be called the argument from design – the idea that the evident order and purposiveness of the universe point to an intelligent creator. Early Church scholars note that in opening Book I, Theophilus “puts forward what we would today describe as an argument from design for God’s existence, calling attention to the evident order of the universe.” The invisible God becomes knowable precisely because creation bears the marks of His intelligence and care.

Providence as ongoing revelation 🔗

Theophilus extends this further. Creation is not simply a one-time event that reveals the Creator at the moment of origin. God’s providence – His continuing guidance and sustaining of the world – is itself an ongoing form of self-disclosure. The orderly motion of the heavens, the regularity of seasons, the patterns of life and growth: all of these, for Theophilus, are acts through which the otherwise invisible God remains present and perceptible to those with eyes to see. His apologetic methodology focuses on the creation account in Genesis in particular, offering a detailed exposition of the creation week as evidence of God’s structured, purposeful activity in history.

Crucially, Theophilus also argues for creation ex nihilo – God creating the world from nothing – against those, like the heretic Hermogenes, who claimed that matter was co-eternal with God. His work Against Hermogenes, recorded by both Eusebius and Jerome, defended the doctrine that God alone is uncreated, and that all matter depends entirely on divine will. This is directly connected to his understanding of providence: if matter were eternal and independent, God’s sovereignty over creation would be compromised from the start.

The role of moral purity 🔗

Theophilus does not treat knowledge of God as a purely intellectual exercise. In To Autolycus, the inability to perceive God is not simply a metaphysical limitation – it is also a moral one. He tells Autolycus directly: the eyes of the soul are overspread by sins and evil deeds. Just as a person with diseased eyes cannot see the light of the sun – though the sun continues to shine – so the morally impure cannot perceive God, though God remains present.

This is a striking move: moral failure is reframed as an epistemic problem. Sinfulness does not just separate a person from God ethically; it actually impairs the capacity to know God at all. The implication is that moral transformation is a prerequisite for genuine theological understanding. Theophilus therefore insists that recognizing God through creation and providence should lead naturally to moral change – to lives characterized by justice, self-discipline, and obedience to divine law. Scholars describe the three books of Ad Autolycum as developing from addressing a hostile reader, to tackling skepticism, to finally turning directly to issues of morality – a trajectory that reflects exactly this theological logic.

Theophilus and the first use of “Trinity” 🔗

Among Theophilus’s most historically significant contributions is a linguistic one. His apology is the earliest extant Christian work to use the word “Trinity” (Greek: τριάς, trias) in a theological context. In Book II, commenting on the three days before the creation of light-bearing bodies in Genesis, he identifies these as types of the Trinity – God, His Word, and His Wisdom. This is not the later Nicene formula of Father, Son, and Holy Spirit, but it is a clear attempt to articulate a relational structure within the divine being, connected directly to the act of creation.

Theophilus was the first known Christian writer to use “triad” in a theological context, interpreting the Genesis creation account as a dialogue between God, His own Reason (Logos), and His Wisdom. This proto-Trinitarian formulation, rooted in the interpretation of Scripture rather than Greek philosophical categories, would foreshadow later doctrinal developments while remaining distinctly anchored in his biblical method.

Theophilus and the pagan philosophers 🔗

Historically, Theophilus is significant for his development of the Logos doctrine, though his treatment of pagan philosophy is considerably less generous than contemporaries like Justin Martyr. Where Justin saw fragments of truth scattered among the Greeks, Theophilus was sharper in his dismissal. He accused Greek thinkers of plagiarism – asserting that whatever truth figures like Socrates or Plato grasped had ultimately been drawn from the Hebrew prophets. For Theophilus, the Old Testament alone contained the full treasury of divine wisdom, making Greek speculation not just incomplete, but derivative.

He was also the first writer who explicitly stated the inspiration of the New Testament, treating the Gospels as “a holy word” and the Pauline epistles as “a divine word,” placing them on a par with the Old Testament prophets. This was a significant step in the development of Christian Scripture as a unified body of authoritative revelation.

His legacy in Christian thought 🔗

Theophilus was widely read in the early centuries. Those influenced by his Genesis exegesis included Eusebius of Caesarea, Methodius, Epiphanius, Lactantius, and Jerome. His argument that the order of the universe points to a divine governor contributed to the development of natural theology. His insistence on creation ex nihilo provided a key building block for orthodox Christian cosmology. And his linking of moral transformation to the knowledge of God offered a framework that later Christian mystics and ethicists would develop in their own ways.

Yet Theophilus is, as scholarship published in Project MUSE notes, a relatively underappreciated figure – not receiving the same attention as Justin Martyr or Irenaeus despite the originality and breadth of his contributions. Part of this may reflect the unusual character of his theology: his Ad Autolycum has been described as promoting a moralistic Christianity that drew heavily on Hellenistic Jewish thought, resulting in what one scholar memorably called a Christianity that is “protreptic” in focus – oriented primarily toward persuading educated pagans to adopt a biblically-grounded moral life.

What makes Theophilus worth reading today is precisely this combination: an unwavering insistence that God exceeds human comprehension, paired with an equally firm conviction that this God is not hidden. He is disclosed – in the regularity of creation, in the sweep of providential history, and in the transformed lives of those who respond to that disclosure with moral seriousness. The invisible is knowable. The incomprehensible is not unknown. That is the core of Theophilus’s theological vision.

What do you think? If God’s nature truly exceeds all human categories – as Theophilus argued – can our descriptions of God ever be more than approximations? And do you find his claim compelling, that moral impurity is not just an ethical failure but an obstacle to genuinely knowing God?

References

1. https://www.britannica.com/biography/Theophilus-of-Antioch
2. https://www.ccel.org/ccel/schaff/anf02.iv.i.html
3. https://www.newadvent.org/fathers/02041.htm
4. https://ecclesiasticalhistory.org/ante-nicene/chapter-176-theophilus-of-antioch
5. https://en.wikipedia.org/wiki/Theophilus_of_Antioch
6. https://grokipedia.com/page/Theophilus_of_Antioch
7. https://asitreads.com/2018-3-1-the-original-christian-biblical-trinity-part-1-theophilus-of-antioch/
8. https://www.newadvent.org/fathers/02042.htm
9. https://earlychurch.org.uk/theophilus.php
10. https://answersingenesis.org/creationism/theophilus-second-century-creation-apologist/
11. https://orthodoxchristiantheology.com/2015/12/28/cliff-notes-for-theophilus-to-autolcus/
12. https://pursuingveritas.com/2016/12/14/scripture-among-the-apologists-theophilus-of-antioch/
13. https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/theophilus-antioch
14. https://www.earlychristianwritings.com/info/theophilus-wace.html
15. https://www.earlychurch.org.uk/theophilus.php
16. https://muse.jhu.edu/article/10241/summary