Know Christ with the depth He deserves
A rigorous, scripture-anchored journey through the full biblical and theological witness to Jesus Christ — from messianic prophecy and the ecumenical councils to atonement, resurrection, and the life of discipleship — for every serious learner who wants more than a surface-level faith.

"Rigorous Christology is not the exclusive territory of the seminary — it belongs to every serious Christian willing to do the work of thinking well about the one at the center of everything."
— Theoria

What you'll learn
What you'll be able to do
- Trace the full biblical witness to Jesus Christ across both Testaments, interpreting messianic prophecy and key titles such as Messiah, Lord, Son of God, Son of Man, and the Word.
- Articulate the theological significance of the incarnation, virgin birth, sinless life, and the union of Christ's full humanity and full divinity.
- Identify and evaluate the major Christological heresies — Arianism, Apollinarianism, Nestorianism, Eutychianism, and Monophysitism — and explain how the ecumenical councils, especially Chalcedon, responded to each.
- Interpret the Chalcedonian definition with precision, explaining what it means for Christ to be one person in two natures without confusion, change, division, or separation.
- Connect Christ's person to his work — atonement, resurrection, ascension, heavenly intercession, and return — showing how these are inseparable from a coherent Christological framework.
- Engage responsibly with influential Christological thinkers from Athanasius and Aquinas to Barth and contemporary evangelical scholars, and apply Christological understanding to worship, ethics, and Christian mission.
How it works
A school that adapts to you
This isn't a set of static videos. Every lesson is generated live and tuned to where you actually are.
We learn your level
A quick placement check tailors your starting point so you're never bored or lost.
Lessons adapt as you go
Each lesson is written for your pace and your goal, adjusting as your skills grow.
Your AI coach keeps you moving
Checkpoints, feedback, and gentle nudges turn progress into a real result.
The curriculum
What's inside your school
6 modules · 28 lessons

The Biblical Witness to Jesus Christ
Surveys how both the Old and New Testaments present the identity of Jesus Christ, from messianic expectation through the full canonical portrait.
- 1.1The Old Testament Foundation: Messianic Promise and ExpectationIncluded
- 1.2Jesus in the Gospels: Identity, Authority, and Self-DisclosureIncluded
- 1.3The Titles of Jesus: Messiah, Son of God, Son of Man, Lord, and the WordIncluded
- 1.4Jesus in Acts, the Epistles, and RevelationIncluded
The Incarnation: Fully God and Fully Human
Examines the theological significance of the incarnation, exploring what Scripture teaches about the union of Christ's divine and human natures.
- 2.1The Virgin Birth: Theological Meaning and Biblical GroundingIncluded
- 2.2The Deity of Christ: Scriptural Witness and Theological AffirmationIncluded
- 2.3The Humanity of Christ: Real, Complete, and SinlessIncluded
- 2.4The Hypostatic Union: One Person in Two NaturesIncluded
- 2.5Kenosis and the Obedience of ChristIncluded
Christological Controversy and the Ecumenical Councils
Traces the major heresies that challenged orthodox Christology and the conciliar responses that shaped the church's definitive doctrinal formulations.
- 3.1Arianism and the Council of NicaeaIncluded
- 3.2Apollinarianism, Nestorianism, and the Integrity of Christ's NaturesIncluded
- 3.3Eutychianism, Monophysitism, and the Confusion of NaturesIncluded
- 3.4The Council of Chalcedon: Definition, Logic, and LegacyIncluded
- 3.5After Chalcedon: Ongoing Debates and RefinementsIncluded
Christology Through the Theologians
Engages the most influential voices in the history of Christological reflection, from the church fathers through the Reformers to modern evangelical scholarship.
- 4.1The Fathers Speak: Athanasius, Cyril of Alexandria, and Leo the GreatIncluded
- 4.2Medieval Christology: Anselm and Thomas AquinasIncluded
- 4.3Reformation Christology: Luther and CalvinIncluded
- 4.4Modern Christology: Karl Barth and Contemporary Evangelical ScholarsIncluded
- 4.5Evaluating Christological Perspectives: Method and DiscernmentIncluded
The Work of Christ: Atonement, Resurrection, and Ongoing Ministry
Connects Christ's person to his saving work, showing that the incarnation, atonement, resurrection, ascension, intercession, and return form one coherent whole.
- 5.1The Atonement: Theories, Scripture, and the Necessity of the CrossIncluded
- 5.2The Resurrection: Historical Event and Theological FoundationIncluded
- 5.3The Ascension and Heavenly Intercession of ChristIncluded
- 5.4The Return of Christ: Eschatology and the Completion of RedemptionIncluded
Christology Applied: Worship, Ethics, Discipleship, and Mission
Demonstrates how a well-formed Christology shapes every dimension of Christian living — from how believers worship to how they engage the world.
- 6.1Christology and Christian WorshipIncluded
- 6.2Christology and Spiritual FormationIncluded
- 6.3Christology and Christian EthicsIncluded
- 6.4Christology and MissionIncluded
- 6.5Integrating Christology: Scripture, Tradition, and the Christian MindIncluded
Who it's for
Is this you?
Seminary students
Supplements formal coursework with a structured, integrative journey through biblical, historical, and systematic Christology that ties everything together.
Pastors & preachers
Equips ministers to preach and teach Christ with theological precision, patristic depth, and the confidence to address contemporary errors from the pulpit.
Lay theologians
For the serious self-taught believer who has outgrown introductory resources and is ready for a full-scale engagement with classical Christological doctrine.
Lifelong Bible students
Brings decades of Scripture reading into sharp focus by providing the theological and historical framework that makes the biblical witness to Christ fully intelligible.
Apologists & discerners
Develops the diagnostic instinct to identify Christological error — ancient and modern — and respond with clarity, charity, and doctrinal precision.
Devoted seekers
For the newer or growing Christian whose faith is deepening and who wants to move beyond surface-level belief into a coherent, grounded understanding of who Jesus really is.
Questions
Frequently asked
Your teacher
A note from your teacher

Theoria
Perhaps you have sat in a Sunday sermon or a small group discussion and felt a quiet frustration — not with the faith, but with the shallowness of the conversation about it. You believe, deeply, that Jesus Christ is Lord. But when someone presses you: What does it actually mean that he is fully God and fully human at the same time? Why did the early church fight so fiercely over words like homoousios? What exactly is the Chalcedonian definition, and why does it still matter? — you find yourself reaching for an answer that is not quite there yet. That gap is not a failure of devotion. It is simply an invitation to go further.
I built this school because I am convinced that rigorous Christology is not the exclusive territory of the seminary classroom. The great questions about the person and work of Jesus Christ belong to every serious Christian — the lay theologian, the lifelong Bible student, the pastor who wants to preach with deeper precision, the skeptic who has become a believer and now wants to understand what they believe and why. These questions have been answered — carefully, hard-won, over centuries of argument and prayer — and the answers are accessible to anyone willing to do the work of thinking well.
What you will find here is not a simplified version of theology for people who cannot handle the real thing. It is the real thing, taught with the care it deserves. We begin in Scripture — both Testaments — because that is where any honest Christology must begin. We move through the councils not as history trivia but as live theological arguments, because understanding why Arianism was wrong is not a museum exercise — it is essential protection for your own faith and the faith of those you shepherd or teach. We sit with Athanasius and Aquinas and Barth not to perform erudition but because these thinkers saw things about Christ that we easily miss, and we owe it to ourselves and to the tradition to listen to them.
And we do not stop at proposition. The final movement of this curriculum asks what a properly formed Christology does to a life — how it changes the way you worship, the way you pray, the way you treat your neighbor, and the way you understand the mission of the church in the world. Doctrine that does not reach the knees and the hands has not yet finished its work.
If you are ready to know Christ more fully — not just to feel more deeply, but to understand more clearly — I invite you to begin. The tradition is richer than you know, the questions are more alive than they appear, and the one at the center of it all is worth every hour of careful thought you bring.
— Theoria
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- 6 modules, 28 lessons
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