John 12:4
One of his disciples, Judas Iscariot (who was to betray him), said,
Matthew 10:4
Simon the Zealot and Judas Iscariot who betrayed him.
Luke 6:16
Judas the son of James, and Judas Iscariot (who turned traitor).
John 6:70-71
Jesus answered them, "Did I not choose you, the twelve? And yet one of you is a devil!"
John 13:2
so at supper, knowing that though the devil had suggested to Judas Iscariot, Simon's son, to betray him,
John 13:26
Jesus answered, "The man I am going to give this piece of bread to, when I dip it in the dish." Then he took the piece of bread, dipped it, and gave it to Judas, the son of Simon Iscariot;
John 18:2-5
Judas the traitor also knew the spot, for Jesus and his disciples often met there.