so must we do
Ezra 10:3
Now therefore let us make a covenant with our God to put away all the wives, and such as are born of them, according to the counsel of my lord, and of those that tremble at the commandment of our God; and let it be done according to the law.
Ezra 10:4
Arise; for this matter belongeth unto thee: we also will be with thee: be of good courage, and do it.
Nehemiah 13:23
In those days also saw I Jews that had married wives of Ashdod, of Ammon, and of Moab:
Psalm 78:37
For their heart was not right with him, neither were they stedfast in his covenant.
Psalm 78:57
But turned back, and dealt unfaithfully like their fathers: they were turned aside like a deceitful bow.