The tongue of the wise uses knowledge aright: but the mouth of fools pours out foolishness.
Proverbs 15:23,28 A man has joy by the answer of his mouth: and a word spoken in due season, how good is it!...
Proverbs 12:23 A prudent man conceals knowledge: but the heart of fools proclaims foolishness.
Proverbs 13:16 Every prudent man deals with knowledge: but a fool lays open his folly.
Proverbs 16:23 The heart of the wise teaches his mouth, and adds learning to his lips.
Proverbs 25:11,12 A word fitly spoken is like apples of gold in pictures of silver...
Psalm 45:1 My heart is gushing a good matter: I speak of the things which I have made touching the king: my tongue is the pen of a ready writer.
Ecclesiastes 10:12,13 The words of a wise man's mouth are gracious; but the lips of a fool will swallow up himself...
Psalm 59:7 Behold, they belch out with their mouth: swords are in their lips: for who, say they, does hear?