Trinity; Word made flesh; Theotokos

hypostasis. We likewise believe in the Holy Spirit, not counting him a stranger to the divine nature; for he is poured out from the Father by nature through the Son upon creation.

So the holy and worshiped Trinity is understood as one, same in substance, and one in the identity of glory.

We say that this same Only-begotten Word, begotten beyond speech from the substance of God the Father, maker of the ages, the one through whom and in whom all things are, the true light, the nature that gives life to all — for he has appeared as life from the Father’s life — in the last times of the age, when the Father was pleased to save the race on earth that had fallen under a curse and been brought down by sin into death and decay, took hold of Abraham’s seed, as the Scriptures say, shared blood and flesh — that is, became human — and taking flesh and making it his own, was born in the flesh through the holy God-bearer Mary.

Yet though he became as we are and put on the slave’s form by the plan of the economy, he remained in the deity and lordship that are his by nature. He did not stop being God when he became flesh — that is, when he became as we are, a human. Because he is unchangeable by nature as God, remaining what he always was and is and will be, he has also been named Son of Man.

And since he came down willingly into the measures of humanity — for he lowered himself into emptying — he also had to endure birth from a woman. His divine nature did not take a beginning of being when he is said to have been born according to the flesh. He was, and is, as I said, the Word from God the Father by nature and in truth.

And since the one from the holy virgin is not thought to be simply a human like us