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Arianism

Doctrinal Controversy

Catholic teaching receives the Nicene confession of the Son's consubstantial equality with the Father and connects it to the Church's sacramental and creedal life.

Historical context

The dispute intensified after Arius's teaching was challenged by Alexander of Alexandria and Athanasius. Nicaea I (325) answered with homoousios, 'of the same essence,' and rejected the claim that the Son was made. The controversy continued through competing fourth-century creeds until the pro-Nicene settlement associated with Constantinople I (381).

Reception

Catholic teaching receives Nicaea as a binding confession of the Son's full divinity and connects it to the Church's baptismal and eucharistic worship.

Memory hook

Begotten is not made: the Son belongs fully to the divine life.

Key points

Common questions

Doctrinal connections

Scripture

Primary sources

The Nicene creed calls the Son:

Nicaea's creed answers creaturely accounts of the Son by confessing him as one in substance with the Father.

being of one substance (ὁμοούσιον, consubstantialem) with the Father

— First Council of Nicaea, Nicene Creed (Creed), trans. Henry Percival, Nicene and Post-Nicene Fathers, Second Series, Volume 14

Passage context and translation

The council uses the term homoousios to confess the Son's full divinity against Arian claims that the Son is a creature.

Before the excerpt

very God of very God, begotten (γεννηθέντα), not made,

After the excerpt

By whom all things were made, both which be in heaven and in earth.

Percival translation in Nicene and Post-Nicene Fathers, Second Series, Volume 14; the excerpt retains the Greek and Latin gloss printed in the linked edition.

Sources and further reading

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