Deuteronomy 12:17-18

17You may not eat within your towns the tithe of your grain or of your wine or of your oil, or the firstborn of your herd or of your flock, or any of your vow offerings that you vow, or your freewill offerings or the contribution that you present,

18but you shall eat them before the Lord your God in the place that the Lord your God will choose, you and your son and your daughter, your male servant and your female servant, and the Levite who is within your towns. And you shall rejoice before the Lord your God in all that you undertake.