Key Terms in Trinitarian Grammar

by R. Lucas Stamps

Trinity Sunday is around the corner, and we thought it would be helpful to share some basic terms for the Trinity (thanks to Thomas Aquinas). Here are some of them:

Five notions

  1. Innascibility (unbegottenness)
  2. Paternity
  3. Sonship
  4. Common Spiration
  5. Procession

Four relations

  1. Paternity
  2. Sonship
  3. Common Spiration
  4. Procession

Three persons

  1. Father
  2. Son/Word/Image
  3. Holy Spirit/Love/Gift

Two processions

  1. Generation
  2. Spiration

One essence

  1. The one divine nature