"Shall He Return to her Again?" - A Collection of Prophecies of Repentance

In chapter 3, Yirmiyahu presents a prophecy that portrays the difficulty inherent in the repentance of the Jewish People through a parable. Israel is compared to a woman who has left her husband – God - for other men - idols. Such a woman is halakhically forbidden to return to her first husband and that sin pollutes and defiles the Land of Israel. Can Israel possibly return to God?