Proverbs 10:11

11 A fountain of life [is] the mouth of the righteous, And the mouth of the wicked cover doth violence.

Proverbs 10:11 In-Context

9 Whoso is walking in integrity walketh confidently, And whoso is perverting his ways is known.
10 Whoso is winking the eye giveth grief, And a talkative fool kicketh.
11 A fountain of life [is] the mouth of the righteous, And the mouth of the wicked cover doth violence.
12 Hatred awaketh contentions, And over all transgressions love covereth.
13 In the lips of the intelligent is wisdom found, And a rod [is] for the back of him who is lacking understanding.
Young's Literal Translation is in the public domain.