Justin Martyr, First Apology 58
The evil demons also promoted Marcion of Pontus, whom we mentioned earlier. He denies the Creator God of all things in heaven and on earth, and he denies the Christ, the Son of God, whom the prophets proclaimed. Now he teaches and proclaims another god besides the Creator of all, and likewise another son. Many have been persuaded by him, and those among us who alone know the truth mock them. They have no proof for the things they say, yet irrationally, like sheep seized by a wolf, they become prey to the doctrines of the atheists and demons. For the so-called demons strive for nothing else than to lead people away from the God who made them and from His Firstborn Christ. Those whom they cannot lift up from the earth they have fastened and continue to fasten to earthly and handmade things, but those who are hastening toward the contemplation of divine things they hinder. Unless such people possess a sober mind, a pure life, and a passionless existence, the demons throw them into impiety.
Greek
Καὶ Μαρκίωνα δὲ τὸν ἀπὸ Πόντου, ἁ ς προέφημεν, προεβάλλοντο οἱ φαῦλοι δαίμονες, ὃς ἀρνεῖσθαι μὲν τὸν ποιητὴν τῶν οὐρανίων καὶ γηΐνων ἁπάντων θεὸν καὶ τὸν προκηρυχθέντα διὰ τῶν προφητῶν Χριστὸν υἱὸν αὐτοῦ καὶ νῦν διδάσκει, ἄλλον δέ τινα καταγγέλλει παρὰ τὸν δημιουργὸν τῶν πάντων θεὸν καὶ ὁμοίως ἕτερον υἱόν· ᾧ πολλοὶ πεισθέντες ὁ ς μόνῳ τἀληθῆ ἐπισταμένῳ ἡμῶν καταγελῶσιν, ἀπόδειξιν μηδεμίαν περὶ ὧν λέγουσιν ἔχοντες, ἀλλὰ ἀλόγως ὡς ὑπὸ λύκου ἄρνες συνηρπασμένοι βορὰ τῶν ἀθέων δογμάτων καὶ δαιμόνων γίνονται. Οὐ γὰρ ἄλλο τι ἀγωνίζονται οἱ λεγόμενοι δαίμονες, ἢ ἀπάγειν τοὺς ἀνθρώπους ἀπὸ τοῦ ποιήσαντος θεοῦ καὶ τοῦ πρωτογόνου αὐτοῦ Χριστοῦ· καὶ τοὺς μὲν τῆς γῆς μὴ ἐπαίρεσθαι δυναμένους τοῖς γηΐνοις καὶ χειροποιήτοις προσήλωσαν καὶ προσηλοῦσι, τοὺς δὲ ἐπὶ θεωρίαν θείων ὁρμῶντας ὑπεκκρούοντες, ἢν μὴ λογισμὸν σώφρονα καὶ καθαρὸν καὶ ἀπαθῆ βίον ἔχωσιν, εἰς ἀσέβειαν ἐμβάλλουσιν.