'Dealt' in the Bible

Dealt treacherously hath Judah, And abomination hath been done in Israel, and in Jerusalem, For polluted hath Judah the holy thing of Jehovah, That He hath loved, and hath married the daughter of a strange god.

And ye have said, 'Wherefore?' Because Jehovah hath testified between thee And the wife of thy youth, That thou hast dealt treacherously against her, And she thy companion, and thy covenant-wife.