Deuteronomy 18:1-4

1“1The Levitical priests, the whole tribe of Levi, shall have no portion or inheritance with Israel; they shall eat the Lord’s offerings by fire and His 2portion. 23They shall have no inheritance among their 4countrymen; the Lord is their inheritance, as He 5promised them.

3“6Now this shall be the priests’ due from the people, from those who offer a sacrifice, either an ox or a sheep, of which they shall give to the priest the shoulder and the two cheeks and the stomach. 4You shall give him the 7first fruits of your grain, your new wine, and your oil, and the first shearing of your sheep.