Deuteronomy 18:2-4

Revised Standard Version

² They shall have no inheritance among their brethren; the Lord is their inheritance, as he promised them. ³ And this shall be the priests’ due from the people, from those offering a sacrifice, whether it be ox or sheep: they shall give to the priest the shoulder and the two cheeks and the stomach. ⁴ The first fruits of your grain, of your wine and of your oil, and the first of the fleece of your sheep, you shall give him.