Isaiah 50:1

Thus saith the Lord, in addressing the Jewish nation in general, all members of which were presumably members also of the Lord's Church, Where is the bill of your mother's divorcement, the reference being to the document which the Jewish Law provided for, Deuteronomy 24; Jeremiah 3:1, whom I have put away? The mother, Zion-Jerusalem, is here distinguished from her children or such as were commonly recognized as her children. Or which of My creditors is it to whom I have sold you? The picture is that of the sale of children to creditors, to be kept in peonage until the debt had been paid off by the labor of the children. Cf 2 Kings 4:1. Behold, for your iniquities, their many guilty actions, have ye sold yourselves, and for your transgressions, their many breaches of faith and of the covenant, is your mother put away, being obliged to bear the wickedness of her children to which she had yielded.