כֹּ֣ה ׀ אָמַ֣ר יְהוָ֗ה אֵ֣י זֶ֠ה סֵ֣פֶר כְּרִית֤וּת אִמְּכֶם֙ אֲשֶׁ֣ר שִׁלַּחְתִּ֔יהָ א֚וֹ מִ֣י מִנּוֹשַׁ֔י אֲשֶׁר־מָכַ֥רְתִּי אֶתְכֶ֖ם ל֑וֹ הֵ֤ן בַּעֲוֺנֹֽתֵיכֶם֙ נִמְכַּרְתֶּ֔ם וּבְפִשְׁעֵיכֶ֖ם שֻׁלְּחָ֥ה אִמְּכֶֽם׃
So spricht der Herr: Wo ist der Scheidebrief eurer Mutter, dass ich sie verstoßen hätte? oder wem von meinen Gläubigern habe ich euch verkauft? Nur um eure Sünden wurdet ihr verkauft, und um eure Missetaten eure Mutter verstoßen.
Ibn Ezra
ספר כריתות Bill of divorcement.1The Hebrew text has the words גט כריתות אמכם ובין אשתו. There is no doubt that this passage is corrupt; the original words were perhaps: כריתות אמכם ֗ גט בין איש ובין אשתו; or כריתות ֗ גט ׃ אמכם ֗ ובין אישה the latter suggestion has been adopted for the translation.
Ibn Ezra
Of your mother and her husband.—This verse seems to contradict the prophecy of Jeremiah, I had put her away and given her a bill of divorce (3:8); but in fact the latter refers to the kingdom of the ten tribes which will never again be established; comp. She shall no more rise (Am. 5:2); but Isaiah speaks of the kingdom of the house of David, which will be restored by Messiah.
Tze'enah Ure'enah
“Thus said the Lord, where is the book, etc.” [50:1]. The prophet said: you should not think that I have driven you away for so long that you have been exiled forever, like a man who drives away his wife and gives her a divorce that she should remain away forever. I have not done this since I have not given you a divorce. Show me, where is the divorce that I sent your mother away? Or, who is the person who lent Me money for you? Who is the person to whom I sold you? You were sold into the hands of the nations because your sins. That is, the sins are the money for which you were sold and the repentance that you will do will be the money with which you will be redeemed from the nations.7Radak, Isaiah, 50:1.