“The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.”
Proverbs 15:2 (KJV)
Context Reading
1A soft answer turneth away wrath: but grievous words stir up anger. 2The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness. 3The eyes of the LORD are in every place, beholding the evil and the good. 4A wholesome tongue is a tree of life: but perverseness therein is a breach in the spirit.