Jerome. Lives of Illustrious Men 14
14 Justus of Tiberias PL 23, 631
Justus, of Tiberias of the province Galilee, also attempted to write a History of Jewish affairs and certain brief Commentaries on the Scriptures but Josephus convicts him of falsehood. It is known that he wrote at the same time as Josephus himself.
853 Justus Tiberiensis, de provincia Galilaea, conatus est et ipse Judaicarum rerum historiam texere, et quosdam Commentariolos de Scripturis componere: sed hunc Josephus arguit mendacii. Constat autem illum eo tempore scripsisse, quo et Josephus.
854 Ἰοῦστος Τιβεριάδος, ἐπαρχίας Γαλιλαίας, ἐπεχείρησε μὲν καὶ αὐτὸς Ἰουδαϊκὴν ἱστορίαν συντάξαι, καὶ τινα ὑπομνήματα περὶ γραφῶν, ἁλλὰ τοῦτον Ἰώσηπος ἐλέγχει ψευσάμενον. Καὶ γὰρ ἐν ἐκείνῳ τῷ καιρῷ συνέγραφεν ὅτε καὶ Ἰώσηπος.