Proverbs 12:23
The shrewd person conceals knowledge, but foolish people publicize folly.
Proverbs 13:16
Every shrewd person acts with knowledge, but a fool displays his folly.
Proverbs 15:2
The tongue of the wise treats knowledge correctly, but the mouth of the fool spouts out folly.
Proverbs 11:13
The one who goes about slandering others reveals secrets, but the one who is trustworthy conceals a matter.
Proverbs 10:14
Those who are wise store up knowledge, but foolish speech leads to imminent destruction.
Proverbs 10:19
When words abound, transgression is inevitable, but the one who restrains his words is wise.
Ecclesiastes 10:3
Even when a fool walks along the road he lacks sense, and shows everyone what a fool he is.
Ecclesiastes 10:12-14
The words of a wise person win him favor, but the words of a fool are self-destructive.