The answer
This means that the Three Hypostases have the same one essence, and for simplification we can say that:
The Father: Existent by Himself, Rational by the Son, and Living by His Spirit.
The One God is Existent by Himself (the Father), Rational by His Word (the Son), and Living by His Spirit.
To illustrate this further, we say that:
The Father is the “Existence”.
The Son is the “Rationality”.
The Holy Spirit is the “Life”.
His Holiness Pope Tawadros II
Pope Tawadros II, My Faith: A Series of Dialogues on the Creed (Coptic Orthodox Patriarchate, 2014), 25–26.
The pages in the book (25–26)
