Deuteronomy 12:17-18

17Within your city gates you may not eat the tenth of your grain, new wine, or fresh oil; the firstborn of your herd or flock; any of your vow offerings that you pledge; your freewill offerings; or your personal contributions.

18You are to eat them in the presence of the Lord your God at the place the Lord your God chooses — you, your son and daughter, your male and female slave, and the Levite who is within your city gates. Rejoice before the Lord your God in everything you do,