שִׂפְתֵ֣י צַ֭דִּיק יִרְע֣וּ רַבִּ֑ים וֶֽ֝אֱוִילִ֗ים בַּחֲסַר־לֵ֥ב יָמֽוּתוּ׃
The lips of the righteous feed many; But the foolish die for want of understanding. .
Read kabbalistic (mystical) interpretation of Proverbs 10:21: and classical mystical sources.