Mark 14:43-46

43And immediately, while he was still speaking, Judas came, one of the twelve, and with him a crowd with swords and clubs, from the chief priests and the scribes and the elders.

44Now the betrayer had given them a sign, saying, "The one I will kiss is the man. Seize him and lead him away under guard."

45And when he came, he went up to him at once and said, "Rabbi!" And he kissed him.

46And they laid hands on him and seized him.