Trinity
Catholic teaching confesses one divine nature in three coequal Persons and receives the Nicene faith through Scripture, creed, and councils.
Why it matters
The Latin Filioque is read as safeguarding the communion of Father and Son without making two causes of the Spirit; Eastern Catholic expression has its own legitimate idiom.
Historical context
The Catholic account receives Nicaea and Constantinople and develops Latin reflection on relations, procession, and one divine essence.
Tradition note
This is a Catholic introduction. Latin and Eastern Catholic churches share communion while differing in liturgical and theological expression.
Memory hook
Three Persons, one indivisible essence and action.
Key points
- The Father is unbegotten and eternally begets the Son within the one equal Godhead.
- The Son is eternally begotten and consubstantial with the Father, never a creature.
- Catholic theology teaches one eternal procession of the Spirit from Father and Son as from one principle.
- The Persons are really distinct by relations of origin and wholly possess the one divine nature.
- The sending of Son and Spirit in history reveals without exhausting their eternal relations.
Common questions
- What does 'one principle' exclude?
- How do Latin and Greek formulas relate?
Practice and discussion
- Pray the Creed and doxology.
- Read divine missions in salvation as revealing eternal relations.
Scripture
- 1 Corinthians 8:6 — Father · unbegotten - The Father is unbegotten and eternally begets the Son within the one equal Godhead.
- John 1:1–3 — Son · consubstantial - The Son is eternally begotten and consubstantial with the Father, never a creature.
- John 15:26 — Spirit · Father and Son - Catholic theology teaches one eternal procession of the Spirit from Father and Son as from one principle.
- Matthew 28:19 — Three Persons - The Persons are really distinct by relations of origin and wholly possess the one divine nature.
- Galatians 4:4–6 — Divine missions - The sending of Son and Spirit in history reveals without exhausting their eternal relations.
Primary sources
Basil writes in On the Holy Spirit:
Basil gathers scriptural divine names for the Holy Spirit, including the Spirit who proceeds from the Father.
It is called “Spirit of God,” “Spirit of truth which proceeds from the Father,” “right Spirit,” “a leading Spirit.”
Passage context and translation
Basil gathers the Spirit's scriptural names while explaining the Spirit's divine dignity and sanctifying work.
Before the excerpt
First of all we ask, who on hearing the titles of the Spirit is not lifted up in soul, who does not raise his conception to the supreme nature?
After the excerpt
Its proper and peculiar title is Holy Spirit; which is a name specially appropriate to everything that is incorporeal, purely immaterial, and indivisible.
Sources and further reading
- OCA: The Holy Trinity
This visual-world quiz node is a short fallback; see the linked Atlas dossiers for fuller treatment.