III.  Of these on a future occasion; for the present the Festival is the Theophany or Birth-day, for it is called both, two titles being given to the one thing.  For God was manifested to man by birth.  On the one hand Being, and eternally Being, of the Eternal Being, above cause and word, for there was no word before The Word; and on the other hand for our sakes also Becoming, that He Who gives us our being might also give us our Well-being, or rather might restore us by His Incarnation, when we had by wickedness fallen from wellbeing.  The name Theophany is given to it in reference to the Manifestation, and that of Birthday in respect of His Birth.

Γʹ. Ταῦτα μὲν ὕστερον. Τὰ δὲ νῦν Θεοφάνια, ἡ πανήγυρις, εἴτουν Γενέθλια: λέγεται γὰρ ἀμφότερα, δύο κειμένων προσηγοριῶν ἑνὶ πράγματι. Ἐφάνη γὰρ Θεὸς ἀνθρώποις διὰ γεννήσεως: τὸ μὲν ὢν, καὶ ἀεὶ ὢν ἐκ τοῦ ἀεὶ ὄντος, ὑπὲρ αἰτίαν καὶ λόγον (οὐδὲ γὰρ ἦν τοῦ Λόγου λόγος ἀνώτερος): τὸ δὲ, δι' ἡμᾶς γενόμενος ὕστερον, ἵν' ὁ τὸ εἶναι δοὺς, καὶ τὸ εὖ εἶναι χαρίσηται: μᾶλλον δὲ, ῥεύσαντας ἡμᾶς ἀπὸ τοῦ εὖ εἶναι διὰ κακίαν, πρὸς αὐτὸ πάλιν ἐπαναγάγῃ διὰ σαρκώσεως. Ὄνομα δὲ, τῷ φανῆναι μὲν, Θεοφάνια: τῷ δὲ γεννᾶσθαι, Γενέθλια.