Proverbs 13:16 KJV
Every prudent man dealeth with knowledge: but a fool layeth open his folly.
Proverbs 13:16, King James Version
In context
15 Good understanding giveth favour: but the way of transgressors is hard.
16 Every prudent man dealeth with knowledge: but a fool layeth open his folly.
17 A wicked messenger falleth into mischief: but a faithful ambassador is health.