Proverbs 22:17-23

17 Turn your ear, and listen to the words of the wise.  Apply your heart to my teaching.

18 For it is a pleasant thing if you keep them within you,  If all of them are ready on your lips.

19 That your trust may be in Yahweh,  I teach you today, even you.

20 Haven't I written to you thirty excellent things  Of counsel and knowledge,

21 To teach you truth, reliable words,  To give sound answers to the ones who sent you? 

22 Don't exploit the poor, because he is poor;  And don't crush the needy in court;

23 For Yahweh will plead their case,  And plunder the life of those who plunder them.