If anyone does not believe that Holy Mary is the Mother of God, he is severed from the Godhead. If anyone should assert that He passed through the Virgin as through a channel, and was not at once divinely and humanly formed in her (divinely, because without the intervention of a man; humanly, because in accordance with the laws of gestation), he is in like manner godless.
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 NazianzusDo you conceive of your Lord as less because? He shows that humiliation is the best road to exaltation (cf. Mt. 23:12); because He humbles Himself for the sake of the soul that is bent down to the ground, that He may even exalt within Himself that which is bent double under a weight of sin?... If so, you must blame the physician for stooping over suffering and putting up with evil smells in order to give health to the sick?
Gregory of NazianzusIt is like employing a small tool on big constructions, if we use human wisdom in the hunt for knowledge of reality.
Gregory of NazianzusIf our Lord ascends up to Heaven, ascend with Him. Be one of those angels who escort Him, or one of those who receive Him. Bid the gates be lifted up (cf. Ps. 24:7, 10), or be made higher, that they may receive Him, exalted after His Passion. Answer to those who are in doubt because He bears up with Him His body and the tokens of His Passion, which He had not when He came down, and who therefore inquire, 'Who is this King of Glory?' that it is the Lord strong and mighty, as in all things that He has done from time to time and does, so now in His battle and triumph for the sake of Mankind.
Gregory of Nazianzus