Deuteronomy 16:16-20

16Three times in a year shall all thy males appear before Yhwh thy God in the place which he shall choose; in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles: and they shall not appear before Yhwh empty: 17Every man shall give as he is able, according to the blessing of Yhwh thy God which he hath given thee.1

18Judges and officers shalt thou make thee in all thy gates, which Yhwh thy God giveth thee, throughout thy tribes: and they shall judge the people with just judgment. 19Thou shalt not wrest judgment; thou shalt not respect persons, neither take a gift: for a gift doth blind the eyes of the wise, and pervert the words of the righteous.2 20That which is altogether just shalt thou follow, that thou mayest live, and inherit the land which Yhwh thy God giveth thee.3