Judas son of James also known as Thaddaeus or Jude is not to be confused with Judas Iscariot, another apostle and later the betrayer of Jesus. Both “Jude” and “Judas” are translations of the name Ὶούδας in the Greek original New Testament, which in turn is a Greek variant of Judah (Y’hudah), a name which was common among Jews at the time. “Jude of James” is only mentioned twice in the New Testament: in the lists of apostles in Luke 6:16 and Acts 1:13.
The Gospel of John also once mentions a disciple called “Judas not Iscariot” (John 14:22). This is often accepted to be the same person as the apostle Jude. In some Latin manuscripts of Matthew 10:3, he is called Judas the Zealot.