Leviticus 19:13-15

13You must not oppress your neighbor or commit robbery against him. You must not withhold the wages of the hired laborer overnight until morning.

14You must not curse a deaf person or put a stumbling block in front of a blind person. You must fear your God; I am the Lord.

15“‘You must not deal unjustly in judgment: you must neither show partiality to the poor nor honor the rich. You must judge your fellow citizen fairly.