Psalm 37:30
"The mouth of the righteous speaketh wisdom, and his tongue talketh of judgment."
Cross References (ranked by relevance)
Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.
The lips of the wise disperse knowledge: but the heart of the foolish doeth not so.
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.
A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.
The lips of the righteous feed many: but fools die for want of wisdom.
The mouth of the just bringeth forth wisdom: but the froward tongue shall be cut out.
My mouth shall shew forth thy righteousness and thy salvation all the day; for I know not the numbers thereof.
Ointment and perfume rejoice the heart: so doth the sweetness of a man’s friend by hearty counsel.
My tongue also shall talk of thy righteousness all the day long: for they are confounded, for they are brought unto shame, that seek my hurt.