Proverbs 12:23
A prudent man conceals knowledge, but the heart of fools proclaims folly.
Proverbs 13:16
In everything the prudent acts with knowledge, but a fool flaunts his folly.
Proverbs 15:2
The tongue of the wise commends knowledge, but the mouths of fools pour out folly.
Proverbs 11:13
Whoever goes about slandering reveals secrets, but he who is trustworthy in spirit keeps a thing covered.
Proverbs 10:14
The wise lay up knowledge, but the mouth of a fool brings ruin near.
Proverbs 10:19
When words are many, transgression is not lacking, but whoever restrains his lips is prudent.
Ecclesiastes 10:3
Even when the fool walks on the road, he lacks sense, and he says to everyone that he is a fool.
Ecclesiastes 10:12-14
The words of a wise man's mouth win him favor, but the lips of a fool consume him.