Proverbs 10:21 Halakhah

שִׂפְתֵ֣י צַ֭דִּיק יִרְע֣וּ רַבִּ֑ים וֶֽ֝אֱוִילִ֗ים בַּחֲסַר־לֵ֥ב יָמֽוּתוּ׃

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

Read halakhic rulings (Jewish law) on Proverbs 10:21: and classical halakhic sources.