'Treacherously' in the Bible

A troubling vision is declared to me:“The treacherous one acts treacherously,and the destroyer destroys.Advance, Elam! Lay siege, you Medes!I will put an end to all her groaning.”

From the ends of the earth we hear songs:The Splendor of the Righteous One.But I said, “I waste away! I waste away!Woe is me.”The treacherous act treacherously;the treacherous deal very treacherously.