Proverbs 14:3-5

Amplified Bible

³ 
In the mouth of the [arrogant] ^[a]fool [who rejects God] is a rod for his back,
But the lips of the wise [when they speak with godly wisdom] will protect them.
⁴ 
Where there are no oxen, the manger is clean,
But much revenue [because of good crops] comes by the strength of the ox.
⁵ 
A faithful and trustworthy witness will not lie,
But a false witness speaks lies.