3.18.1
XVIII. Ἐν τούτῳ κατέχει λόγος τὸν ἀπόστολον ἅμα καὶ εὐαγγελιστὴν Ἰωάννην ἔτι τῷ βίῳ ἐνδιατρίβοντα, τῆς εἰς τὸν θεῖον λόγον ἕνεκεν μαρτυρίας Πάτμον οἰκεῖν καταδικασθῆναι τὴν νῆσον. γράφων γέ τοι ὁ Εἰρήναιος περὶ τῆς ψήφου τῆς κατὰ τὸν ἀντίχριστον προσηγορίας φερομένης ἐν τῇ Ἰωάννου λεγομένῃ Ἀποκαλύψει, αὐταῖς συλλαβαῖς ἐν πέμπτῳ τῶν πρὸς τὰς αἱρέσεις ταῦτα περὶ τοῦ Ἰωάννου φησίν “ εἰ δὲ ἔδει ἀναφανδὸν ἐν τῷ νῦν καιρῷ κηρύττεσθαι τοὔνομα αὐτοῦ, δι᾿ ἐκείνου ἂν ἐρρέθη τοῦ καὶ τὴν ἀποκάλυψιν ἑορακότος . οὐδὲ γὰρ πρὸ πολλοῦ χρόνου ἑωράθη, ἀλλὰ σχεδὸν ἐπὶ τῆς ἡμετέρας γενεᾶς, πρὸς τῷ τέλει τῆς Δομετιανοῦ ἀρχῆς.’
XVIII. At this time, the story goes, the Apostle and Evangelist John was still alive, and was condemned to live in the island of Patmos for his witness to the divine word. At any rate, Irenaeus, writing about the number of the name ascribed to the anti-Christ in the so-called Apocalypse of John, states this about John in so many words in the fifth book against Heresies. “But if it had been necessary to announce his name plainly at the present time, it would have been spoken by him who saw the Apocalypse. For it was not seen long ago, but almost in our own time, at the end of the reign of Domitian.”