The name Judas the Zealot (Judas Zelotes) is mentioned in the Epistle of the Apostles (Epistula Apostolorum), written in the 2nd century. He is usually identified with the Apostle Simon the Zealot, with whom he shares a surname, or with the Apostle Jude.
Bruce Metzger, in his Textual Commentary on the Greek NT,[1] comments on Matthew 10:3: