Theophilus of Antioch, To Autolycus 2.15
Similarly, the three days that existed before the lights are types of the Trinity: God, His Word, and His Wisdom. On the fourth day, man is a type—the one who needs the light—so that God may be, Word may be, Wisdom may be, man may be.
Greek
Ὡσαύτως καὶ αἱ τρεῖς ἡμέραι πρὸ τῶν φωστήρων γεγονυῖαι τύποι εἰσὶν τῆς τριάδος, τοῦ θεοῦ καὶ τοῦ λόγου αὐτοῦ καὶ τῆς σοφίας αὐτοῦ. Τετάρτῳ δὲ τύπῳ ἐστὶν ἄνθρωπος ὁ προσδεὴς τοῦ φωτός, ἵνα ᾖ θεός, λόγος, σοφία, ἄνθρωπος.