Council · 431 · 22 June

Council of Ephesus

Ephesus forced the church to say whether the one born of Mary is truly the eternal Son made flesh. Nestorius resisted the title Theotokos, 'God-bearer,' because he feared it confused Christ's divinity and humanity. Cyril of Alexandria argued that refusing the title divided Christ too sharply. The council sided with Cyril: Mary bore the one person of the Word incarnate, not a merely human partner joined to God.

At a glance

Type: Council
Date remembered: 22 June, AD 431
What kind of event is this?: A council or settlement that changed the church's public teaching, discipline, or historical direction.
Key line: Mary bore the Word made flesh.

Highlights

Nestorius was deposed.
Theotokos was affirmed.
Cyril's Christology carried the council.
The controversy shaped later Eastern divisions.

How it happened

What happened

The council deposed Nestorius after a bitter conflict with Cyril of Alexandria.

The argument

Was Mary Theotokos, God-bearer, or only Christotokos, Christ-bearer? The real issue was the unity of Christ.

What changed

The council affirmed Theotokos because the one born of Mary is the Word incarnate.

Why it matters

Ephesus protected the claim that Jesus is one Lord, not a loose partnership between a divine person and a human person.

Aftermath

The condemnation of Nestorius deepened divisions with Antiochene and Persian Christian communities.

People in the story

Cyril of Alexandriac. 376 – 444Patriarch of Alexandria. Chief architect of Christological orthodoxy; presided over the Council of Ephesus (431) which condemned Nestorius.

Nestoriusc. 386 – c. 451Archbishop of Constantinople (428-431). Condemned at Ephesus (431) for distinguishing two persons in Christ and denying the title Theotokos. Heretic.