“But in the second way, 'immaterial' is said of subsistent forms forms that subsist without matter like angels or spiritual substances in general.”

“There is one God, the Father of the living Word, who is his subsistent wisdom and power and eternal image: perfect begetter of the perfect begotten, Father of the only-begotten Son.”

“Because this cause is a subject intellectually identical with its esse, we can call this cause subsistent being.”