Matthew 26:47-50 New Revised Standard Version (NRSV)
The Betrayal and Arrest of Jesus
47 While he was still speaking, Judas, one of the twelve, arrived; with him was a large crowd with swords and clubs, from the chief priests and the elders of the people. 48 Now the betrayer had given them a sign, saying, “The one I will kiss is the man; arrest him.” 49 At once he came up to Jesus and said, “Greetings, Rabbi!” and kissed him. 50 Jesus said to him, “Friend, do what you are here to do.” Then they came and laid hands on Jesus and arrested him.