Eusebius — Church History 5.14 (Montanus / prophetesses)
…of whom some crept through Asia and Phrygia like venomous reptiles, boasting of Montanus as the Paraclete, and of the women from him, Priscilla and Maximilla, as having become prophetesses of Montanus.
Greek
ὧν οἱ μὲν ἰοβόλων δίκην ἑρπετῶν ἐπὶ τῆς Ἀσίας καὶ Φρυγίας εἷρπον, τὸν μὲν δὴ παράκλητον Μοντανόν, τὰς δ’ ἐξ αὐτοῦ γυναῖκας, Πρίσκιλλαν καὶ Μαξίμιλλαν, ὡς ἂν τοῦ Μοντανοῦ προφήτιδας γεγονυίας, αὐχοῦντες.