Proverbs 10:18-21

He that hideth hatred with lying lips, And he that uttereth a slander, is a fool. In the multitude of words there wanteth not sin: But he that refraineth his lips is wise. The tongue of the just is as choice silver: The heart of the wicked is little worth. The lips of the righteous feed many: But fools die for want of wisdom.
Proverbs 10:18-21