Deuteronomy 16:14-15

ISV(i) 14 Rejoice in your festival—you, your son, your daughter, your male and female slaves, the descendants of Levi, foreigners, orphans, and widows who live in your cities. 15 For seven days you are to celebrate in the presence of the LORD your God at the place where the LORD will choose; for the LORD your God will bless you in all your harvest and in everything you do, and your joy will be complete.