Matthew 26:47-50 King James Version (KJV)
47 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.
48 Now he that betrayed him gave them a sign, saying, Whomsoever I shall kiss, that same is he: hold him fast.
49 And forthwith he came to Jesus, and said, Hail, master; and kissed him.
50 And Jesus said unto him, Friend, wherefore art thou come? Then came they, and laid hands on Jesus and took him.