'Treacherously' in the Bible

A hard vision hath been declared to me, The treacherous dealer is dealing treacherously, And the destroyer is destroying. Go up, O Elam, besiege, O Media, All its sighing I have caused to cease.

From the skirt of the earth we heard songs, The desire of the righteous. And I say, 'Leanness is to me, Leanness is to me, woe is to me.' Treacherous dealers dealt treacherously, Yea, treachery, treacherous dealers dealt treacherously.

Woe, spoiler! and thou not spoiled, And treacherous! and they dealt not treacherously with thee, When thou dost finish, O spoiler, thou art spoiled, When thou dost finish dealing treacherously, They deal treacherously with thee.

Yea, thou hast not heard, Yea, thou hast not known, Yea, from that time not opened hath thine ear, For I have known thou dealest treacherously, And 'Transgressor from the belly,' One is crying to thee.