Job 12:20
"He removeth away the speech of the trusty, and taketh away the understanding of the aged."
Cross References (ranked by relevance)
Great men are not always wise: neither do the aged understand judgment.
For thou hast hid their heart from understanding: therefore shalt thou not exalt them.
He taketh away the heart of the chief of the people of the earth, and causeth them to wander in a wilderness where there is no way.
The lip of truth shall be established for ever: but a lying tongue is but for a moment.
The lips of the righteous feed many: but fools die for want of wisdom.
Lying lips are abomination to the LORD: but they that deal truly are his delight.
Because God hath deprived her of wisdom, neither hath he imparted to her understanding.