Proverbs 16:32

16:32 Better to be slow to anger than to be a mighty warrior,

and one who controls his temper is better than one who captures a city.

Proverbs 19:19

19:19 A person with great anger bears the penalty,

but if you deliver him from it once, you will have to do it again.

Proverbs 30:33

30:33 For as the churning of milk produces butter

and as punching the nose produces blood,

so stirring up anger produces strife.