2.16.1
XVI. τοῦτον δὲ Μάρκον] πρῶτόν φασιν ἐπὶ τῆς Αἰγύπτου στειλάμενον, τὸ εὐαγγέλιον, ὃ δὴ καὶ συνεγράψατο, κηρῦξαι, ἐκκλησίας τε πρῶτον ἐπ’ αὐτῆς Ἀλεξανδρείας συστήσασθαι. τοσαύτη δ᾿ ἄρα τῶν αὐτόθι πεπιστευκότων πληθὺς ἀνδρῶν τε καὶ γυναικῶν ἐκ πρώτης ἐπιβολῆς συνέστη δι’ ἀσκήσεως φιλοσοφωτάτης τε καὶ σφοδροτάτης, ὡς καὶ γραφῆς αὐτῶν ἀξιῶσαι τὰς διατριβὰς καὶ τὰς συνηλύσεις τά τε συμπόσια καὶ πᾶσαν τὴν ἄλλην τοῦ βίου ἀγωγὴν τὸν Φίλωνα·
XVI. They say that this Mark was the first to be sent to preach in Egypt the Gospel which he had also put into writing, and was the first to establish churches in Alexandria itself. The number of men and women who were there converted at the first attempt was so great, and their asceticism so extraordinarily philosophic, that Philo thought it right to describe their conduct and assemblies and meals and all the rest of their manner of life.