Historia Ecclesiastica
Eusebius of Caesarea
Eusebius. Eusebii Caesariensis Opera, Volume 4. Dindorf, Luwdig, editor. Leipzig: Teubner, 1871.
τότε δὴ οὖν καὶ τὸν ἀπόστολον Ἰωάννην ἀπὸ τῆς κατὰ τὴν νῆσον φυγῆς τὴν ἐπὶ τῆς Ἐφέσου διατριβὴν ἀπειληφέναι ὁ τῶν παρ’ ἡμῖν ἀρχαίων παραδίδωσι λόγος.