consubstantial

Pythagoras taught that God is a number; Xenophanes that it is a sphere, passionless and consubstantial with all things; Parmenides that it is but the confluence of earth and fire.

The Council decided, in the year 325, that Christ was consubstantial with the Father.

In making of Christ the Second Person of the Eternal Trinity, the Son of the Father, consubstantial and equal, it removes Him from history and transports Him into metaphysics.

They added to the tenets and symbols the words consubstantial with the Father; and concluded by anathematising the Arians.

The text that was ultimately approved, and put into effect Sunday, is more complicated and formal, using words like “consubstantial” and “oblation.”