Matthew 26:14-16   14. ¶Then one of the twelve, called Judas Iscariot, went unto the chief priests, 15. And said unto them, What will ye give me, and I will deliver him unto you? And they covenanted with him for thirty pieces of silver. 16. And from that time he sought opportunity to betray him.

Luke 22:3-6   3. ¶Then entered Satan into Judas surnamed Iscariot, being of the number of the twelve. 4. And he went his way, and communed with the chief priests and captains, how he might betray him unto them. 5. And they were glad, and covenanted to give him money. 6. And he promised, and sought opportunity to betray him unto them in the absence of the multitude.

Psalms 55:11-13   11. Wickedness is in the midst thereof: deceit and guile depart not from her streets. 12. For it was not an enemy that reproached me; then I could have borne it: neither was it he that hated me that did magnify himself against me; then I would have hid myself from him: 13. But it was thou, a man mine equal, my guide, and mine acquaintance.