'Betraying' in the Bible

It was during supper, when the devil had already put [the thought of] betraying Jesus into the heart of Judas Iscariot, Simon’s son,

For He knew the one who was betraying Him; for this reason He said, “Not all of you are clean.”

Now Judas also, who was betraying Him, knew the place, for Jesus had often met there with His disciples.

They answered Him, “Jesus the Nazarene.” He *said to them, “I am He.” And Judas also, who was betraying Him, was standing with them.

Peter turned [and] saw the disciple whom Jesus loved following [them] (who also leaned back on his chest at the dinner and said, "Lord, who is the one betraying you?")