Proverbs 14:3-6

In the mouth of the [arrogant] 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. Where there are no oxen, the manger is clean, But much revenue [because of good crops] comes by the strength of the ox. A faithful and trustworthy witness will not lie, But a false witness speaks lies. A scoffer seeks wisdom and finds none [for his ears are closed to wisdom], But knowledge is easy for one who understands [because he is willing to learn].