Proverbs 11:17

11:17 A kind person benefits himself,

but a cruel person brings himself trouble.

Proverbs 14:21

14:21 The one who despises his neighbor sins,

but whoever is kind to the needy is blessed.

Proverbs 16:21

16:21 The one who is wise in heart is called discerning,

and kind speech increases persuasiveness.