Proverbs 12:23
A clever person conceals knowledge, but the heart of a fool announces folly.
Proverbs 13:16
Anyone who is clever will act with intelligence, but the fool will display folly.
Proverbs 15:2
The tongue of the wise will dispense knowledge, but the mouth of fools will pour out folly.
Proverbs 11:13
A gossip walks [about] telling a secret, but the trustworthy in spirit keeps [the] matter.
Proverbs 10:14
Those who are wise lay up knowledge, but [to] the mouth of the fool, ruin draws near.
Proverbs 10:19
In many words, transgression is not lacking, but he who restrains his lips is prudent.
Ecclesiastes 10:3
Even when the fool walks along the road, he lacks sense; he tells everyone [that] he is a fool.
Ecclesiastes 10:12-14
The wise man [wins] favor by the words of his mouth, but the fool is devoured by his own lips.