Exodus 29:31–33

31 “You shall take the ram of ordination and nboil its flesh in a holy place. 32 And Aaron and his sons shall eat the flesh of the ram and the obread that is in the basket in the entrance of the tent of meeting. 33 pThey shall eat those things with which atonement was made at their ordination and consecration, but an qoutsider shall not eat of them, because they are holy.