Deuteronomy 18:2-4

New International Version - UK

² They shall have no inheritance among their fellow Israelites; the Lord is their inheritance, as he promised them.

³ This is the share due to the priests from the people who sacrifice a bull or a sheep: the shoulder, the internal organs and the meat from the head. ⁴ You are to give them the firstfruits of your corn, new wine and olive oil, and the first wool from the shearing of your sheep,