Deuteronomy 12:11-12

11you must bring everything I command you—your burnt offerings, your sacrifices, your tithes, your sacred offerings, and your offerings to fulfill a vow—to the designated place of worship, the place the Lord your God chooses for his name to be honored.

12“You must celebrate there in the presence of the Lord your God with your sons and daughters and all your servants. And remember to include the Levites who live in your towns, for they will receive no allotment of land among you.