'Treacherously' in the Bible

Look, these people through the counsel of Balaam caused the Israelites to act treacherously against the Lord in the matter of Peor -- which resulted in the plague among the community of the Lord!

They were unfaithful and acted as treacherously as their ancestors; they were as unreliable as a malfunctioning bow.

The divine verdict is in the words of the king, his pronouncements must not act treacherously against justice.

After entering into an alliance with him, he will behave treacherously; he will ascend to power with only a small force.