Proverbs 15:2
A wise tongue commendeth knowledge; a foolish mouth babbleth out nothing but foolishness.
Proverbs 12:23
He that hath understanding can hide his wisdom; but an indiscreet heart telleth out his foolishness.
Proverbs 13:16
A wise man doth all things with discretion; but a fool will declare his folly.
Proverbs 15:28
A righteous man museth in his mind how to do good; but the mind of the ungodly imagineth how he may do harm.
Psalm 45:1
{To the Chanter, upon Shoshannim, an instruction of the children of Korah; a song of love} My heart is inditing of a good matter; I speak the things which I have made unto the King. My tongue is the pen of a ready writer.
Psalm 59:7
Behold, they speak against me with their mouth, and swords are under their lips, for who reproveth them?
Proverbs 15:23
A joyful thing it is to a man, when his counsel is followed; and very pleasant is a word spoken in due season.
Proverbs 16:23
A wise heart ordereth his mouth wisely; and amendeth the doctrine in his lips.
Proverbs 25:11-12
A word spoken in due season, is like apples of gold in a silver dish.
Ecclesiastes 10:12-13
The words out of a wise man's mouth are gracious, but the lips of a fool will destroy himself.
Isaiah 50:4
The LORD God hath given me a well learned tongue, so that I can comfort them which are troubled; yea, and that in due season. He waked mine ear up betimes in the morning, as schoolmasters do; that I might hark.