[The following selctions are from Gregory of Nazianzus’ Oration 29 and Oration 38, the latter delivered on Christmas Day 380 AD.]
Christ is born, glorify Him!
Christ from heaven, go out to meet Him. Christ on earth; be ye exalted. Sing unto the Lord all the whole earth; and that I may join both in one word, Let the heavens rejoice, and let the earth be glad, for Him Who is of heaven and then of earth. Christ in the flesh, rejoice with trembling and with joy; with trembling because of your sins, with joy because of your hope. Christ of a Virgin; O you Matrons live as Virgins, that you may be Mothers of Christ. Who does not worship Him That is from the beginning? Who does not glorify Him That is the Last?