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Articles

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

chalcedonian creed
Ancient Eastern church interior with Oriental Orthodox golden icons and candles

Oriental Orthodoxy and Chalcedon: The Churches That Never Agreed

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

July 6, 2026

chalcedonian creed
An ancient scroll or letter with a papal seal, representing Leo the Great's Tome and its decisive role at the Council of Chalcedon in 451

Leo the Great's Tome: The Letter That Shaped the Council of Chalcedon

When Pope Leo I's letter was read at Chalcedon in 451, the bishops reportedly cried 'Peter has spoken through Leo!' Explore how this Western theologian shaped the definition of Christ.

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

June 29, 2026

chalcedonian creed
An ancient mosaic depicting a church council, representing Cyril of Alexandria's role in shaping Chalcedonian Christology

Cyril of Alexandria: Theologian of the Incarnation

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.

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

June 22, 2026

chalcedonian creed
Churches that rejected the Council of Chalcedon illustrated in church history

Why Some Churches Rejected Chalcedon — and What Happened Next

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.

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

May 9, 2026

chalcedonian creed
Ancient manuscript page of the Chalcedonian Definition surrounded by stacked theological books

5 Essential Books for Studying the Chalcedonian Creed

The Chalcedonian Creed is the 451 AD Definition of Christ as one person in two natures, without confusion or division. These five books guide serious study of its history, theology, and ongoing significance.

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

April 22, 2026

chalcedonian creed
Eutychianism the heresy of mixed natures that Chalcedon rejected

Eutychianism: The Other Heresy Chalcedon Rejected

While Nestorianism divided Christ into two persons, Eutychianism went to the opposite extreme and fused his two natures into one. The Council of Chalcedon rejected both errors with four precise adverbs.

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

April 18, 2026

church history
Cover of Roger Olson's book The Story of Christian Theology on a desk beside classic Christian creeds and confessions.

The Story of Christian Theology: The Best Single-Volume Introduction to Historical Theology

The Story of Christian Theology by Roger Olson is a single-volume narrative history of Christian doctrine that traces how core beliefs and major creeds developed from the early church to the modern era, making it an ideal first textbook for historical theology.

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

April 15, 2026

chalcedonian creed
Nestorian church history illustration of the condemned theology at Chalcedon

Who Were the Nestorians and Why Were They Condemned?

Nestorius was one of the most powerful bishops in the early church before he was condemned, exiled, and became a byword for heresy. What did he actually teach — and was the condemnation fair?

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

April 12, 2026

church history
Stack of the three volumes of Philip Schaff's The Creeds of Christendom on a desk beside an open Bible and notebook

The Creeds of Christendom by Philip Schaff: Why Every Serious Student Needs This Book

Philip Schaff’s The Creeds of Christendom is the definitive three‑volume English collection of Christian creeds and confessions, uniting original texts, translations, and historical introductions in one indispensable reference for serious students.

Rev. C•D•F• Warrington, M.Div.

By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

Date

April 8, 2026