Exodus 29:29-37

“The holy garments of Aaron shall be for his sons after him; they shall be anointed in them and ordained in them. The son who succeeds him as priest, who comes into the tent of meeting to minister in the Holy Place, shall wear them seven days. “You shall take the ram of ordination and boil its flesh in a holy place. And Aaron and his sons shall eat the flesh of the ram and the bread that is in the basket in the entrance of the tent of meeting. They shall eat those things with which atonement was made at their ordination and consecration, but an outsider shall not eat of them, because they are holy. And if any of the flesh for the ordination or of the bread remain until the morning, then you shall burn the remainder with fire. It shall not be eaten, because it is holy. “Thus you shall do to Aaron and to his sons, according to all that I have commanded you. Through seven days shall you ordain them, and every day you shall offer a bull as a sin offering for atonement. Also you shall purify the altar, when you make atonement for it, and shall anoint it to consecrate it. 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.