The Son is 'Life' (Jn. 14:6) because He is 'Light', constituting and giving reality to every thinking being. 'For in Him we live, move and exist' (Acts 17:28) and there is a two-fold sense in which He breathes into us (cf. Gen. 2:7; Jn. 20:22); we are filled, all of us, with His breath, and those who are capable of it, all those who open their mind's mouth wide enough, with His Holy Spirit.
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 NazianzusNo one has yet discovered or ever shall discover what God is in His nature and essence... we shall, in time to come, 'know as we are known' (I Cor 13:12). But for the present what reaches us is a scant emanation, as it were a small beam from a great light - which means that any one who 'knew' God or whose 'knowledge' of Him has been attested to in the Bible, has a manifestly more brilliant knowledge than others not equally illuminated. This superiority was reckoned knowledge in the full sense, not because it really was so, but by the contrast of relative strengths.
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 NazianzusIf 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 NazianzusMay you be children of God, pure and unblameable, in the midst of a crooked and perverse generation (cf. Phil. 1:15): and may you never be entangled in the snares of the wicked that go round about, or bound with the chains of your sins. May the Word in you never be smothered with the cares of this life and so make you unfruitful: but may you walk in the King's Highway, turning aside neither to the right hand nor to the left, but led by the Spirit through the narrow gate.
Gregory of Nazianzus