Job 33:3
"My words shall be of the uprightness of my heart: and my lips shall utter knowledge clearly."
Cross References (ranked by relevance)
My lips shall not speak wickedness, nor my tongue utter deceit.
There is gold, and a multitude of rubies: but the lips of knowledge are a precious jewel.
Who is this that darkeneth counsel by words without knowledge?
Should a wise man utter vain knowledge, and fill his belly with the east wind?
The lips of the wise disperse knowledge: but the heart of the foolish doeth not so.
Now therefore be content, look upon me; for it is evident unto you if I lie.
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.