Exodus 29:29-31

Darby Translation

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

³⁰ The son that is priest in his stead shall put them on seven days, when he cometh into the tent of meeting to serve in the sanctuary.

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