John Trapp on Proverbs 14:3

Verſ. 3. In the mouth of the fooliſh, is a rod of pride] wherewith hee beats others, and layes about him like a Mad-man; or rather like a mad Dog, hee bites all he meets, and barks againſt God himſelf: till he procure the hate of God and men, and ſmart for his petulancy; being beaten at length with his own rod, as the Lion beats himſelf with his own tayl.

But the lips of the wiſe ſhall preſerve them] From the aſperſion of falſe and fooliſh tongues. Their good names are oyled, ſo that evil reports will not ſtick to them. Dirt will ſtick upon a mud wall, not ſo upon marble. Or if they lye under ſome undeſerved reproach for a ſeaſon, either by a real or verbal Apologie they wade out of it, as the eclipſed Moon, by keeping her motion, wades out of the ſhadow, and recovers her ſplendor, Iſa. 54.17.