Exodus 29:26-30

26“Then you shall take the breast of the ram of Aaron’s ordination, and wave it as a wave offering before the Lord; and it shall be your (Moses) portion.

27You shall consecrate the waved breast offering [of the ram] used in the ordination and the waved thigh offering of the priests’ portion, since it is [a contribution] for Aaron and for his sons.

28It shall be for Aaron and his sons as their due portion from the Israelites forever, for it is a heave offering. It shall be a heave offering to the Lord from the Israelites from the sacrifices of their peace offerings.

29“The holy garments of Aaron shall be for his sons after him, to be anointed and ordained in them.

30That son who is [high] priest in his place shall put them on [each day for] seven days when he comes into the Tent of Meeting to minister in the Holy Place.