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Study guides, historical commentary, and theological reflection on the Chalcedonian Creed.

Cyril of Alexandria's fierce defense of Christ's divine personhood laid the groundwork for the Council of Chalcedon. Explore how his theology shaped the church's confession of Christ.

Ordained Minister, M.Div.
June 22, 2026

The Chalcedonian Definition was written for fifth-century controversies, but modern Christological errors repeat the same ancient patterns. That is why Chalcedon remains indispensable.

Ordained Minister, M.Div.
June 13, 2026

Chalcedon navigated between two opposing Christological errors: Nestorius divided Christ's person, Eutyches confused His natures. The council's definition was precise enough to exclude both.

Ordained Minister, M.Div.
June 6, 2026

The Chalcedonian Definition describes Christ's two natures as united 'without confusion, without change, without division, without separation.' These four adverbs are the grammar of orthodox Christology.

Ordained Minister, M.Div.
May 30, 2026

The term 'hypostatic union' describes how two complete natures—divine and human—are united in the one person of Jesus Christ. It is Chalcedon's central contribution to Christian theology.

Ordained Minister, M.Div.
May 23, 2026

The Council of Chalcedon in 451 AD produced one of the most precise Christological statements in church history. What did the bishops actually decide, and why did they need to meet at all?

Ordained Minister, M.Div.
May 16, 2026

The Council of Chalcedon was not accepted by everyone. Understanding the rejection — and its lasting consequences — illuminates one of Christianity's oldest and most enduring divisions.

Ordained Minister, M.Div.
May 9, 2026

The doctrine of the Incarnation is the heart of Christian faith — and the Chalcedonian Definition is the Church's most precise statement of what it means for God to become flesh.

Ordained Minister, M.Div.
May 2, 2026

The Chalcedonian formula 'two natures, one person' sounds like a contradiction. How can one being simultaneously be fully divine and fully human? This is what the formula actually means — and why it is not a contradiction.

Ordained Minister, M.Div.
April 25, 2026