Exodus 29:29-33

29“And the holy garments of Aaron shall be his sons’ after him, to be anointed in them and to be consecrated in them.

30That son who becomes priest in his place shall put them on for seven days, when he enters the tabernacle of meeting to minister in the holy place.

31“And you shall take the ram of the consecration and boil its flesh in the holy place.

32Then Aaron and his sons shall eat the flesh of the ram, and the bread that is in the basket, by the door of the tabernacle of meeting.

33They shall eat those things with which the atonement was made, to consecrate and to sanctify them; but an outsider shall not eat them, because they are holy.