Judas Iscariot
Judas Iscariot (died AD) was a disciple and one of the original Twelve Disciples of Jesus Christ. According to all four canonical gospels, Judas betrayed Jesus to the Sanhedrin in the Garden of Gethsemane by kissing him and addressing him as "Rabbi" to reveal his identity to the crowd who had come to arrest him. His name is often used synonymously with betrayal or treason. Judas's epithet "Iscariot" most likely means he came from the village of Kerioth, but this explanation is not universally accepted and many other possibilities have been suggested.
John 13
Jesus quotes the words of Psalm 41:9:
According to the Pulpit Commentary, in the Psalm, "Ahithophel (who had been a counsellor to King David) is almost certainly intended", and the Cambridge Bible for Schools and Colleges notes that "the words of the Psalm are not a direct prediction, but the treachery and the fate of Ahithophel foreshadowed the treachery and the fate of Judas". The Jerusalem Bible translates this verse as "Someone who shares my table rebels against me" (John 13:18). Francis Moloney identifies this verse not only with Judas' betrayal of Jesus, but also with Peter's denial of Him (John 18:15-27).