Deuteronomy 16:14-20

14Be joyful at your festival—you, your sons and daughters, your male and female servants, and the Levites, the foreigners, the fatherless and the widows who live in your towns.

15For seven days celebrate the festival to the Lord your God at the place the Lord will choose. For the Lord your God will bless you in all your harvest and in all the work of your hands, and your joy will be complete.

16Three times a year all your men must appear before the Lord your God at the place he will choose: at the Festival of Unleavened Bread, the Festival of Weeks and the Festival of Tabernacles. No one should appear before the Lord empty-handed:

17Each of you must bring a gift in proportion to the way the Lord your God has blessed you.

18Appoint judges and officials for each of your tribes in every town the Lord your God is giving you, and they shall judge the people fairly.

19Do not pervert justice or show partiality. Do not accept a bribe, for a bribe blinds the eyes of the wise and twists the words of the innocent.

20Follow justice and justice alone, so that you may live and possess the land the Lord your God is giving you.