Proverbs 10:11
"The mouth of a righteous man is a well of life: but violence covereth the mouth of the wicked."
Cross References (ranked by relevance)
The law of the wise is a fountain of life, to depart from the snares of death.
Blessings are upon the head of the just: but violence covereth the mouth of the wicked.
Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.
The words of a man’s mouth are as deep waters, and the wellspring of wisdom as a flowing brook.
The lips of the wise disperse knowledge: but the heart of the foolish doeth not so.
There is gold, and a multitude of rubies: but the lips of knowledge are a precious jewel.
The lips of the righteous know what is acceptable: but the mouth of the wicked speaketh frowardness.
The righteous shall see it, and rejoice: and all iniquity shall stop her mouth.