Deuteronomy 12:17-18

In your towns you are not to take as food the tenth part of your grain, or of your wine or your oil, or the first births of your herds or of your flocks, or anything offered under an oath, or freely offered to the Lord, or given as a lifted offering; But they will be your food before the Lord your God in the place of his selection, where you may make a feast of them, with your son and your daughter, and your man-servant and your woman-servant, and the Levite who is living with you: and you will have joy before the Lord your God in everything to which you put your hand.