Mark 14:43-45

43And immediately, even as Jesus said this, Judas, one of the twelve disciples, arrived with a crowd of men armed with swords and clubs. They had been sent by the leading priests, the teachers of religious law, and the elders.

44The traitor, Judas, had given them a prearranged signal: “You will know which one to arrest when I greet him with a kiss. Then you can take him away under guard.”

45As soon as they arrived, Judas walked up to Jesus. “Rabbi!” he exclaimed, and gave him the kiss.