Proverbs 10:21 in the King James Version
The lips of the righteous feed many: but fools die for want of wisdom.
Context
20 The tongue of the righteous is like choice silver. The heart of the wicked is of little worth.
21 The lips of the righteous feed many, but the foolish die for lack of understanding.
22 The LORD’s blessing brings wealth, and he adds no trouble to it.