Proverbs 15:2
The tongue of the wise uses knowledge aright: but the mouth of fools pours out foolishness.
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 15:28
The heart of the righteous studies to answer: but the mouth of the wicked pours out evil things.
Psalm 45:1
[To the Chief Musician upon shoshannim, for the Sons of Korah, a maschil, a song of loves.] My heart is overflowing with a good matter: I speak of the things which I have made concerning the king: my tongue is the pen of a ready scribe.
Psalm 59:7
Behold, they bellow out with their mouths: swords are in their lips: for who, say they, does hear?
Proverbs 15:23
A man has joy by the answer of his mouth: and a word spoken in due season, how good is it!
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 settings of silver.
Ecclesiastes 10:12-13
The words of a wise man's mouth are gracious; but the lips of a fool will swallow him up.
Isaiah 50:4
The Lord GOD has given me the tongue of the learned, that I should know how to speak a word in season to him that is weary: he awakens morning by morning, he awakens my ear to hear as the learned.