שִׁמְעוּ־נָ֣א זֹ֔את עַ֥ם סָכָ֖ל וְאֵ֣ין לֵ֑ב עֵינַ֤יִם לָהֶם֙ וְלֹ֣א יִרְא֔וּ אָזְנַ֥יִם לָהֶ֖ם וְלֹ֥א יִשְׁמָֽעוּ׃
Hear now this, O foolish people, and without understanding, That have eyes, and see not, That have ears, and hear not:
Read halakhic rulings (Jewish law) on Jeremiah 5:21 from the Mishneh Torah and classical halakhic sources, free online.