Mark 14:44
Now the betrayer had given them a signal, saying, "The one I shall kiss is the man; seize him and lead him away under guard."
Matthew 26:48-50
Now the betrayer had given them a sign, saying, "The one I kiss is the man; seize him."
Acts 16:23
And when they had inflicted many blows upon them, they threw them into prison, charging the jailer to guard them securely.
Philippians 1:28
in no way frightened by your opponents. This is a sign of destruction to them, but of salvation for you and that too, from God.
2 Thessalonians 3:17
I, Paul, write this greeting with my own hand. This is a distinguishing mark in every letter; this is the way I write.