Proverbs 10:19-22, 31-32

When words are many, transgression is not lacking, but whoever restrains his lips is prudent. The tongue of the righteous is choice silver; the heart of the wicked is of little worth. The lips of the righteous feed many, but fools die for lack of sense. The blessing of the LORD makes rich, and he adds no sorrow with it.

The mouth of the righteous brings forth wisdom, but the perverse tongue will be cut off. The lips of the righteous know what is acceptable, but the mouth of the wicked, what is perverse.