De Synodis 1110

X. "And if any one admits that God became Father of the Only-begotten Son at any point in time and not that the Only-begotten Son came into existence without passion beyond all times and beyond all human calculation: for contravening the teaching of the Gospel which scorned any interval of times between the being of the Father and the Son and faithfully has instructed us that In the beginning was the Word, and the Word was with God, and the Word was God, let him be anathema." 24. It is a pious saying that the Father is not limited by times: for the true meaning of the name of Father which He bore before time began surpasses comprehension. Although religion teaches us to ascribe to Him this name of Father through which comes the impassible origin of the Son, yet He is not bound in time, for the eternal and infinite God cannot be understood as having become a Father in time, and according to the teaching of the Gospel the Only-begotten God the Word is recognized even in the beginning rather to be with God than to be born.