Proverbs 10:11 (NIV). The mouth of the righteous is a fountain of life, but violence overwhelms the mouth of the wicked....... Thoughts on This Verse... Want to know the difference between a righteous person and a wicked one? Simple. Check the fruit of their lives. One of the most obvious forms of fruit in a person's life is his or her speech. The righteous person finds a way to impart life with his or her speech. The wicked will nearly always reveal themselves by what their mouths say.