Jeremiah 3:11 Kabbalah

וַיֹּ֤אמֶר יְהוָה֙ אֵלַ֔י צִדְּקָ֥ה נַפְשָׁ֖הּ מְשֻׁבָ֣ה יִשְׂרָאֵ֑ל מִבֹּגֵדָ֖ה יְהוּדָֽה׃

even the LORD said unto me—backsliding Israel hath proved herself more righteous than treacherous Judah.

Read kabbalistic (mystical) interpretation of Jeremiah 3:11: and classical mystical sources.