Matthew 26:14-16, 47-50

Then one of the twelve, who was called Judas Iscariot, went unto the chief priests, and said, What are ye willing to give me, and I will deliver him unto you? And they weighed unto him thirty pieces of silver. And from that time he sought opportunity to deliver him unto them.

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 is he: take him. And straightway he came to Jesus, and said, Hail, Rabbi; and kissed him. And Jesus said unto him, Friend, do that for which thou art come. Then they came and laid hands on Jesus, and took him.