Mark 14:44

Now his betrayer had given them a sign, saying: "He whom I shall kiss, it is he. Take hold of him, and lead him away cautiously.

Other versions

And he that betrayed him had given them a token, saying, Whomsoever I shall kiss, that same is he; take him, and lead him away safely.

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

Now the betrayer had arranged a signal with them: "The one I kiss is the man; arrest him and lead him away under guard."