Deuteronomy 16:18-20

Judges and officers shalt thou make thee in all thy gates, which Jehovah thy God giveth thee, according to thy tribes; and they shall judge the people with righteous judgment. Thou shalt not wrest justice: thou shalt not respect persons; neither shalt thou take a bribe; for a bribe doth blind the eyes of the wise, and pervert the words of the righteous. That which is altogether just shalt thou follow, that thou mayest live, and inherit the land which Jehovah thy God giveth thee.