Proverbs 20:26

20:26 A wise king separates out the wicked;

he turns the threshing wheel over them.

Proverbs 22:7

22:7 The rich rule over the poor,

and the borrower is servant to the lender.

Proverbs 28:15

28:15 Like a roaring lion or a roving bear,

so is a wicked ruler over a poor people.