John 12:4
But one of Jesus' disciples named Judas Iscariot, who later turned Him over [i.e., to the Jewish authorities], said,
Matthew 10:4
Simon, the Cananean [i.e., the same as the Zealot. See Luke 6:15], and Judas Iscariot, who also [besides being an apostle] was His betrayer.
Luke 6:16
Judas, the son of James [i.e., the same as Thaddaeus. See Matt. 10:3] and Judas Iscariot, who became a traitor [to Jesus].
John 6:70-71
Jesus answered them, "Did I not choose [all] twelve of you, and one of you is a devil?" [Note: The word "devil" means "adversary" or "opponent"].
John 13:2
The devil had already filled the heart of Judas Iscariot, Simon's son, with the desire to turn Jesus over [i.e., to the Jewish authorities]. During the [Passover] meal,
John 13:26
Jesus answered, "It is the person to whom I give a piece of bread after dipping it [in the sauce bowl]." So, when He had dipped the piece of bread, He took it [out] and gave it to Judas, the son of Simon Iscariot.
John 18:2-5
Now Judas, who [was soon to] turn Jesus over [to the Jewish authorities] also knew where this place was, for Jesus had frequently met there with His disciples.