וְהָֽלְכ֞וּ עָרֵ֣י יְהוּדָ֗ה וְיֹשְׁבֵי֙ יְר֣וּשָׁלִַ֔ם וְזָֽעֲקוּ֙ אֶל־הָ֣אֱלֹהִ֔ים אֲשֶׁ֛ר הֵ֥ם מְקַטְּרִ֖ים לָהֶ֑ם וְהוֹשֵׁ֛עַ לֹֽא־יוֹשִׁ֥יעוּ לָהֶ֖ם בְּעֵ֥ת רָעָתָֽם׃
Then shall the cities of Judah and the inhabitants of Jerusalem go and cry unto the gods unto whom they offer; but they shall not save them at all in the time of their trouble.
Read halakhic rulings (Jewish law) on Jeremiah 11:12: and classical halakhic sources.