He took our flesh and our flesh became God, since it is united with God and forms a single entity with him. For the higher perfection dominated, resulting in my becoming God as fully as he became man.
Gregory of NazianzusAs far as we can reach, He Who Is, and God, are the special names of His Essence; and of these especially He Who Is, not only because when He spoke to Moses in the mount, and Moses asked what His Name was, this was what He called Himself, bidding him say to the people 'I Am has sent me' (Ex. 3:14), but also because we find that this Name is the more strictly appropriate.
Gregory of NazianzusLet us quake before the great Spirit, Who is my God, Who has made me know God, Who is God there above, and Who forms God here: almighty, imparting manifold gifts, Him Whom the holy choir hymns, Who brings life to those in heaven and on earth, and is enthroned on high, coming from the Father, the divine force, self-commandeered; He is not a Child (for there is one worthy Child of the One who is best), nor is He outside the unseen Godhead, but of identical honor.
Gregory of NazianzusWhen one has looked upon Jesus, though he be of little stature like Zacchaeus of old (cf. Lk. 19:3), and climb up on the top of the sycamore tree by mortifying his members which are upon the earth (cf. Col. 3:5), and having risen above the body of humiliation, then he shall receive the Word, and it shall be said to him, This day has salvation come to this house (cf. Lk. 19:9). Then let him lay hold on the salvation, and bring forth fruit more perfectly, scattering and pouring forth rightly that which as a publican he wrongly gathered.
Gregory of Nazianzus