Cross reference
Mark 14:20
20 He answered them, "It is one of the twelve, he who dips with me in the dish.
John 13:26
26 Jesus therefore answered, "It is he to whom I will give this piece of bread when I have dipped it." So when he had dipped the piece of bread, he gave it to Judas, the son of Simon Iscariot.
Matthew 26:23
23 He answered, "He who dipped his hand with me in the dish, the same will betray me.
Matthew 26:47
47 While he was still speaking, behold, Judas, one of the twelve, came, and with him a great multitude with swords and clubs, from the chief priest and elders of the people.
Mark 14:43
43 Immediately, while he was still speaking, Judas, one of the twelve, came--and with him a multitude with swords and clubs, from the chief priests, the scribes, and the elders.
Luke 22:47
47 While he was still speaking, behold, a multitude, and he who was called Judas, one of the twelve, was leading them. He came near to Jesus to kiss him.
John 6:71
71 Now he spoke of Judas, the son of Simon Iscariot, for it was he who would betray him, being one of the twelve.