Plato, Republic, book 2 402:

τί δὲ δὴ ὁ δεύτεροσ ὅδε; ἆρα γόητα τὸν θεὸν οἰεί εἶναι καὶ οἱο͂ν ἐξ ἐπιβουλῆσ φαντάζεσθαι ἄλλοτε ἐν ἄλλαισ ἰδέαισ τοτὲ μὲν αὐτὸν γιγνόμενον, καὶ ἀλλάττοντα τὸ αὑτοῦ εἶδοσ εἰσ πολλὰσ μορφάσ, τοτὲ δὲ ἡμᾶσ ἀπατῶντα καὶ ποιοῦντα περὶ αὑτοῦ τοιαῦτα δοκεῖν, ἢ ἁπλοῦν τε εἶναι καὶ πάντων ἥκιστα τῆσ ἑαυτοῦ ἰδέασ ἐκβαίνειν;