Council · Today in 431
Council of Ephesus
The question at Ephesus was simple to state, even if hard to settle: when Mary gave birth to Jesus, was the one she bore truly God in human flesh? Nestorius disliked calling Mary 'God-bearer' because he feared it blurred Jesus' humanity and divinity. Cyril of Alexandria argued that refusing the title split Jesus into two too sharply. The council agreed with Cyril: Jesus is one person, the eternal Son who truly became human. The debate was not mainly about Mary; it was about who Jesus is.
The one born of Mary is God who became human.
Highlights
- Nestorius was removed as bishop.
- Mary was affirmed as 'God-bearer.'
- Cyril's teaching 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.
People in the story
Cyril of AlexandriaPatriarch of Alexandria. Chief architect of Christological orthodoxy; presided over the Council of Ephesus (431) which condemned Nestorius.
NestoriusArchbishop of Constantinople (428-431). Condemned at Ephesus (431) for distinguishing two persons in Christ and denying the title Theotokos. Heretic.
Book of the day
On the Unity of Christ
Cyril of AlexandriaA reading pick tied to today's figure, quote, era, or event. The best short entry into the Nestorian controversy and why 'one Christ' mattered so much.
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