Proverbs 14:29-31

He who is slow to anger has great understanding [and profits from his self-control], But he who is quick-tempered exposes and exalts his foolishness [for all to see]. [Prov 16:32; James 1:19] A calm and peaceful and tranquil heart is life and health to the body, But passion and envy are like rottenness to the bones. He who oppresses the poor taunts and insults his Maker, But he who is kind and merciful and gracious to the needy honors Him. [Prov 17:5; Matt 25:40, 45]