Mark 14:44
Now the one who turned Him over to the Jewish leaders [i.e., Judas] had given them a signal, saying, "Whoever I give a kiss [of greeting] to, he is the one; arrest him and lead him away under guard."
Matthew 26:48-50
Now the one who betrayed Him had given them a signal, saying, "Whoever I give a kiss [of greeting to], he is the one, take hold of him."
Acts 16:23
After beating them severely, they threw them in jail and ordered the jailor to have them securely guarded.
Philippians 1:28
[I also want to hear] that you are not being frightened by those who oppose you, which [opposition] is proof that they will be destroyed, but that you will be saved, and this will [all] be done by God.
2 Thessalonians 3:17
This greeting [is being written] by me, Paul, in my own handwriting; it is the signature I write in every letter.