Condemnation · 325 · 19 June
Arius condemned at Nicaea
Arius was condemned because his teaching made the Son a creature, however exalted. The council's anathemas rejected claims that 'there was when he was not' or that the Son came from nothing. That line mattered because Christian salvation depends on God himself coming to save, not on the highest creature acting as God's agent. Nicaea's rejection of Arius became the starting point for decades of conflict over how to confess Christ.

At a glance
- Type
- Condemnation
- Date remembered
- 19 June, AD 325
- What kind of event is this?
- A doctrinal line drawn against a teaching the church judged outside the apostolic faith.
- Key line
- There was not when the Son was not.
Highlights
- Arius was anathematized.
- The Son was confessed as eternal.
- Creature-Christ language was rejected.
- The Arian controversy continued after Nicaea.
How it happened
What happened
Nicaea attached anathemas to teachings associated with Arius and his supporters.
The argument
Is the Son eternal God from God, or a created being brought into existence by the Father?
What changed
The church drew a formal line against saying 'there was when he was not.'
Why it matters
The condemnation protected the claim that salvation is God's own act in Christ.
Aftermath
The controversy continued for decades through exile, imperial pressure, and rival formulas.
