Leviticus 7:35-37

New Century Version

³⁵ This is the portion that belongs to Aaron and his sons from the offerings made by fire to the Lord. They were given this share on the day they were presented to the Lord as priests. ³⁶ On the day the Lord appointed the priests, he commanded Israel to give this share to them, and it is to be given to the priests as their share from now on.

³⁷ These are the teachings about the whole burnt offering, the grain offering, the sin offering, the penalty offering, the offering for the appointment of priests, and the fellowship offering.