isaiah 50:1 Thus saith the LORD, Where is the bill of your mother's divorcement, whom I have put away? or which of my creditors is it to whom I have sold you? Behold, for your iniquities have ye sold yourselves, and for your transgressions is your mother put away. - Free Bible Online

      Isa 50:1-11. THE JUDGMENTS ON ISRAEL WERE PROVOKED BY THEIR CRIMES, YET THEY ARE NOT FINALLY CAST OFF BY GOD.

      1. Where . . . mothers divorcement--Zion is "the mother"; the Jews are the children; and God the Husband and Father (Isa 54:5; 62:5; Jer 3:14). GESENIUS thinks that God means by the question to deny that He had given "a bill of divorcement" to her, as was often done on slight pretexts by a husband (De 24:1), or that He had "sold" His and her "children," as a poor parent sometimes did (Ex 21:7; 2Ki 4:1; Ne 5:5) under pressure of his "creditors"; that it was they who sold themselves through their own sins. MAURER explains, "Show the bill of your mother's divorcement, whom . . . ; produce the creditors to whom ye have been sold; so it will be seen that it was not from any caprice of Mine, but through your own fault, your mother has been put away, and you sold" (Isa 52:3). HORSLEY best explains (as the antithesis between "I" and "yourselves" shows, though LOWTH translates, "Ye are sold") I have never given your mother a regular bill of divorcement; I have merely "put her away" for a time, and can, therefore, by right as her husband still take her back on her submission; I have not made you, the children, over to any "creditor" to satisfy a debt; I therefore still have the right of a father over you, and can take you back on repentance, though as rebellious children you have sold yourselves to sin and its penalty (1Ki 21:25).
      bill . . . whom--rather, "the bill with which I have put her away" [MAURER].

JFB.