Proverbs 10:21 Midrash

שִׂפְתֵ֣י צַ֭דִּיק יִרְע֣וּ רַבִּ֑ים וֶֽ֝אֱוִילִ֗ים בַּחֲסַר־לֵ֥ב יָמֽוּתוּ׃

The lips of the righteous feed many; But the foolish die for want of understanding. .

Read midrashic interpretation of Proverbs 10:21: and classical rabbinic exegesis.