Proverbs 10:13 in the King James Version
In the lips of him that hath understanding wisdom is found: but a rod is for the back of him that is void of understanding.
Context
12 Hatred stirs up strife, but love covers all wrongs.
13 Wisdom is found on the lips of him who has discernment, but a rod is for the back of him who is void of understanding.
14 Wise men lay up knowledge, but the mouth of the foolish is near ruin.