Mark 14:44-46 NLT
The 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.” As soon as they arrived, Judas walked up to Jesus. “Rabbi!” he exclaimed, and gave him the kiss.
Then the others grabbed Jesus and arrested him.
NLT: New Living Translation