Exodus 29:27-37

27 You shall consecrate the breast that was raised as an elevation offering and the thigh that was raised as an elevation offering from the ram of ordination, from that which belonged to Aaron and his sons.
28 These things shall be a perpetual ordinance for Aaron and his sons from the Israelites, for this is an offering; and it shall be an offering by the Israelites from their sacrifice of offerings of well-being, their offering to the Lord.
29 The sacred vestments of Aaron shall be passed on to his sons after him; they shall be anointed in them and ordained in them.
30 The son who is priest in his place shall wear them seven days, when he comes into the tent of meeting to minister in the holy place.
31 You shall take the ram of ordination, and boil its flesh in a holy place;
32 and Aaron and his sons shall eat the flesh of the ram and the bread that is in the basket, at the entrance of the tent of meeting.
33 They themselves shall eat the food by which atonement is made, to ordain and consecrate them, but no one else shall eat of them, because they are holy.
34 If any of the flesh for the ordination, or of the bread, remains until the morning, then you shall burn the remainder with fire; it shall not be eaten, because it is holy.
35 Thus you shall do to Aaron and to his sons, just as I have commanded you; through seven days you shall ordain them.
36 Also every day you shall offer a bull as a sin offering for atonement. Also you shall offer a sin offering for the altar, when you make atonement for it, and shall anoint it, to consecrate it.
37 Seven days you shall make atonement for the altar, and consecrate it, and the altar shall be most holy; whatever touches the altar shall become holy.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.