Exodus 29:29-31

American Standard Version

²⁹ And the holy garments of Aaron shall be for his sons after him, to be anointed in them, and to be consecrated in them. ³⁰ Seven days shall the son that is priest in his stead put them on, when he cometh into the tent of meeting to minister in the holy place.

³¹ And thou shalt take the ram of consecration, and boil its flesh in a holy place.