'Treacherously' in the Bible

“You know that the Passover is coming in two days, and the Son of Man is to be betrayed and handed over for crucifixion.”

He shrewdly exploited our race and mistreated our fathers, forcing them to expose their [male] babies so that they would die.

“Their throat is an open grave;They [habitually] deceive with their tongues.”“The venom of asps is beneath their lips.”

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;