Proverbs 21:23 in the World English Bible
Whoever guards his mouth and his tongue keeps his soul from troubles.
Context
22 A wise man scaleth the city of the mighty, and casteth down the strength of the confidence thereof.
23 Whoso keepeth his mouth and his tongue keepeth his soul from troubles.
24 Proud and haughty scorner is his name, who dealeth in proud wrath.