'Betrayal' in the Bible

For the sons of Ammon and Moab [suspecting betrayal] rose up against the inhabitants of Mount Seir, completely destroying them; and when they had finished with the inhabitants of Seir, they helped to destroy one another.

Woe to you who destroy, but you weren't destroyed; and who betray, but nobody betrayed you! When you have finished destroying, you will be destroyed; and when you have made an end of betrayal, you will be betrayed.

For I received from the Lord Himself that [instruction] which I passed on to you, that the Lord Jesus on the night in which He was betrayed took bread;