The mouth of the righteous speaketh wisdom, and his tongue talketh of judgment.
Proverbs 10:31The mouth of the just bringeth forth wisdom: but the froward tongue shall be cut out.
Proverbs 15:7The lips of the wise disperse knowledge: but the heart of the foolish doeth not so.
Ephesians 4:29Let 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.
Colossians 4:6Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.