”THE Father is the principle of the whole Deity.”
~St. Augustine: De Trinitate, 4, 20.
“GOD is therefore truly the Father, inasmuch as He if Father of truth; He does not create the Son from outside Himself, but generates Him from His own substance. That is to say, being wise, He generates Wisdom, being just, Justice, be eternal, the Eternal, being immortal, the Immortal, being invisible, the Invisible. Because He is Light, He generates Brightness, and because He is Mind, the Word.”
~Rufinus: Commentary on the Apostles’ Creed, 4. (5th cent.)