Constantinople II

553 AD

Constantinople

Second Council of Constantinople

The fifth council sought to show that Chalcedon did not authorize Nestorian division and that orthodox Christology remained faithful to Cyril.

Issue

Chalcedonian reception, anti-Nestorian clarification, and the Three Chapters

Called by

Emperor Justinian I

Attendance

About 165 bishops

Outcome

What the council decided

Condemned the Three Chapters and clarified the interpretation of Chalcedon in an anti-Nestorian direction.

Why it matters

The doctrine at stake

This council matters because it shows how councils are received and interpreted, not merely announced.

Council teaching

Interpreting Chalcedon through Ephesus

The council insisted that the confession of two natures must never be used to divide Christ into two persons or two sons.

It defended the continuity between Ephesus and Chalcedon by reading Chalcedon in a Cyrilline, anti-Nestorian direction.

Controversy explained

The Three Chapters controversy

The Three Chapters involved writings and figures suspected of preserving Nestorian tendencies. Condemning them was meant to reassure those who feared Chalcedon had weakened Ephesus.

The controversy also showed how imperial politics, regional mistrust, and theological precision could become entangled.

Study path

How to understand it

1

Return to Ephesus

The council cannot be understood apart from the earlier defense of Christ's unity.

2

Read Chalcedon carefully

Constantinople II insists that two natures does not mean two Sons.

3

Watch reception

The council caused controversy because it touched earlier compromises and regional trust.

Reception

How the traditions receive it

Catholic

Received as the fifth ecumenical council, though its reception in parts of the West was difficult at first.

Orthodox

Received as ecumenical and important for an anti-Nestorian reading of Chalcedon.

Protestant

Usually treated as part of the classical conciliar inheritance, though less emphasized than the first four councils.

Oriental Orthodox

Not received as ecumenical, since it belongs to the post-Chalcedonian council sequence.

Key terms

Words to know

Three Chapters

Writings and authors associated with positions judged too close to Nestorian division.

Cyrilline Christology

The Christological emphasis associated with Cyril of Alexandria on the unity of the incarnate Word.

Reception

The process by which the Church understands, defends, and applies a council's teaching.

Scripture

Biblical connections

John 1:14Colossians 2:9Hebrews 1:31 Timothy 3:16

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