Matthew 26:14-16, 47-50

Then one of the twelve, called Judas Iscariot, went unto the chief priests, 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. And from that time he sought opportunity to betray him.

And while he yet spake, lo, Judas, one of the twelve, came, and with him a great multitude with swords and staves, from the chief priests and elders of the people. Now he that betrayed him gave them a sign, saying, Whomsoever I shall kiss, that same is he: hold him fast. And forthwith he came to Jesus, and said, Hail, master; and kissed him. And Jesus said unto him, Friend, wherefore art thou come? Then came they, and laid hands on Jesus, and took him.