Eunomianism
Catholic teaching receives the Son as eternally begotten, not made, and fully equal in divinity with the Father.
Historical context
Eunomius wrote in the aftermath of the Nicene controversy and became a leading representative of an anomoian position, meaning 'unlike in essence.' Basil of Caesarea and Gregory of Nyssa responded to his account of divine knowability and the Son's status. The dispute involved both Trinitarian doctrine and the limits of theological language.
Reception
Catholic teaching confesses the Son as eternally begotten, not made, and fully equal in divinity with the Father.
Memory hook
The Son is not unlike the Father as a creature is unlike God.
Key points
- The Son is not a creature whose essence is unlike the Father's.
- The Father's unbegottenness is a personal property, not a higher grade of divinity.
- Divine generation cannot be measured by ordinary creaturely production.
- The question of whether God is comprehensible shapes how theology speaks about revelation and mystery.
Common questions
- Does begottenness imply inferiority?
- Can human language define God's essence?
- How is the Son's relation to the Father different from creaturely origin?
Doctrinal connections
- Trinity
- Divine incomprehensibility
- Begottenness
- Nicene theology
Scripture
- John 10:30 — Christ speaks of unity with the Father; later theology asks how this unity relates to divine nature and personal distinction.
- John 14:9–11 — The Son's revelation of the Father became central to debates about the Son's equality and knowability.
Primary sources
John of Damascus writes:
John of Damascus says that the Father's unbegottenness entails neither a difference of essence nor a difference of dignity in the Son.
all the qualities the Father has are the Son's, save that the Father is unbegotten, and this exception involves no difference in essence nor dignity, but only a different mode of coming into existence.
Passage context and translation
John says that the Father's being unbegotten distinguishes the mode of personal existence without introducing a difference of divine essence or dignity between Father and Son.
Before the excerpt
the term 'Only-begotten' because He alone was begotten alone of the Father alone
After the excerpt
These do not differ from each other in nature ... but they differ in the mode of coming into existence.
The Nicene creed calls the Son:
Nicaea confesses the Son as consubstantial with the Father.
being of one substance (ὁμοούσιον, consubstantialem) with the Father
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.