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