43. While denying that the God of us all, the Son of God, existed before He was born in bodily form, some assert that He existed according to foreknowledge and predestination, and not according to the essence of a personally subsistent nature: that is, because the Father predestined the Son to have existence some day by being born of the Virgin, He was announced to us by the Father's foreknowledge rather than born and existent before the ages in the substance of the divine nature, and that all things which He Himself spake in the prophets concerning the mysteries of His incarnation and passion were simply said concerning Him by the Father according to His foreknowledge. Consequently this perverse doctrine is condemned, so that we know that the Only-begotten Son of God was born of the Father before all worlds, and formed the worlds and all creation, and that He was not merely predestined to be born.

VI. "If any man says that the substance of God is expanded and contracted: let him be anathema."