Proverbs 29:20
If thou seest a man that is hasty to speak unadvised; thou mayest trust a fool more than him.
Proverbs 26:12
If thou seest a man that is wise in his own conceit, there is more hope in a fool than in him.
James 1:19
Wherefore, dear brethren, let every man be swift to hear, slow to speak, and slow to wrath.
Proverbs 14:29
Patience is a token of wisdom; but wrath and hasty displeasure is a token of foolishness.
Proverbs 21:5
The devices of one that is diligent, bring plenteousness; but he that is unadvised, cometh to poverty.
Proverbs 29:11
A fool poureth out his spirit altogether, but a wise man keepeth it in till afterward.
Ecclesiastes 5:2
and let not thine heart speak anything rashly before God. For God is in heaven, and thou upon earth, therefore let thy words be few.