Barnabas, Epistle of Barnabas 18
Let us move on to another subject of knowledge and teaching. There are two ways of teaching and authority: one of light and one of darkness, and the difference between them is immense. On the one hand, light-guiding angels of God are stationed; on the other, angels of Satan. The one is Lord from ages past and into the ages to come, while the other is the ruler of the present age of lawlessness.
Greek
Μεταβῶμεν δὲ καὶ ἐπὶ ἑτέραν γνῶσιν καὶ διδαχήν. Ὁδοὶ δύο εἰσὶν διδαχῆς καὶ ἐξουσίας, ἥ τε τοῦ φωτὸς καὶ ἡ τοῦ σκότους. διαφορὰ δὲ πολλὴ τῶν δύο ὁδῶν. ἐφ̓ ἧς μὲν γάρ εἰσιν τεταγμένοι φωταγωγοὶ ἄγγελοι τοῦ θεοῦ, ἐφ̓ ἦς δὲ ἄγγελοι τοῦ σατανᾶ. καὶ ὁ μέν ἐστιν κύριος ἀπὸ αἰώνων καὶ εἰς τοὺς αἰῶνας, ὁ δὲ ἄρχων καιροῦ τοῦ νῦν τῆς ἀνομίας.