NKJV

Proverbs 17
15 He who justifies the wicked, and he who condems the just, Both of them alike are an abomination to the Lord.
16 Why is there in the hand of a fool the purchase price of wisdom, Since he has no heart for it?
Proverbs 21
24 A proud and haughty man—“Scoffer” is his name; He acts with arrogant pride.
Proverbs 22
10 Cast out the scoffer, and contention will leave; Yes, strife and reproach will cease.
24-25 Make no friendship with an angry man, And with a furious man do not go, Lest you learn his ways And set a snare for your soul.
Matthew 5
22 But I say to you that whoever is angry with his brother without a cause shall be in danger of the judgment. And whoever says to his brother, ‘Raca!’ shall be in danger of the council. But whoever says, ‘You fool!’ shall be in danger of hell fire.