Should be careful to deal with foolish and wicked peoples.

He who reproves a scoffer gates shame for himself. And he who rebukes a wicked man gets himself a blemish. Prove 9:7, Therefore, Do not speak in the hearing of a fool, for he will despise the wisdom of your words. (Prove 23:9) A fool has no delight in understanding but in expressing his own heart. (Prove: 18:2) Do not answer a fool according to his folly, lest you also be like him. (Prove 26:4) He who walks with wise men will be wise, but the companion of fools will be destroyed. (Prove 13:20) Go from the presence of a foolish man, when do not perceive in him the lips of knowledge. (Prove 14:7) Though you grind a fool in a mortar with a pestle along with crushed grain, yet his foolishness will not depart from him. (Prove 27:22) Even a fool is counted wise when he holds his peace; when shuts his lips, he is considered perceptive. (Prove 17:28)