Proverbs 15:21
"Folly is joy to him that is destitute of wisdom: but a man of understanding walketh uprightly."
Cross References (ranked by relevance)
See then that ye walk circumspectly, not as fools, but as wise,
It is as sport to a fool to do mischief: but a man of understanding hath wisdom.
A wise man feareth, and departeth from evil: but the fool rageth, and is confident.
He that is void of wisdom despiseth his neighbour: but a man of understanding holdeth his peace.
And unto man he said, Behold, the fear of the LORD, that is wisdom; and to depart from evil is understanding.
Fools make a mock at sin: but among the righteous there is favour.
The fear of the LORD is the beginning of wisdom: a good understanding have all they that do his commandments: his praise endureth for ever.
Who is a wise man and endued with knowledge among you? let him shew out of a good conversation his works with meekness of wisdom.