Justin Martyr, First Apology 58
Evil demons have 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, who was proclaimed through the prophets. Instead he now teaches and proclaims another god besides the Creator of all, and similarly another son. Many have been persuaded by him, though they merely imagine they alone know the truth. They mock us while offering no proof for their claims. Irrationally, like sheep seized by a wolf, they become prey to the doctrines of the ungodly and of demons. For these 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 the demons cannot lift up from earthly and handmade things they have fastened and continue to fasten to such things. But those who are striving for a vision of divine things the demons undermine; unless they possess a sound 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.