וְהָיָה֙ הָאִ֣ישׁ הַה֔וּא כֶּֽעָרִ֛ים אֲשֶׁר־הָפַ֥ךְ יְהוָ֖ה וְלֹ֣א נִחָ֑ם וְשָׁמַ֤ע זְעָקָה֙ בַּבֹּ֔קֶר וּתְרוּעָ֖ה בְּעֵ֥ת צָהֳרָֽיִם׃
And let that man be as the cities Which the LORD overthrew, and repented not; And let him hear a cry in the morning, And an alarm at noontide;
Read halakhic rulings (Jewish law) on Jeremiah 20:16 from the Mishneh Torah and classical halakhic sources, free online.