Exodus 29:15-30

“And you shall take one of the rams, and Aaron and his sons shall lay their hands on the head of the ram; then you shall kill the ram and you shall take its blood and sprinkle it around the altar [of burnt offering]. Then you shall cut the ram into pieces, and wash its intestines and legs, and place them with its pieces and its head, and you shall burn the whole ram on the altar. It is a burnt offering to the LORD: it is a sweet and soothing aroma, an offering by fire to the LORD. “Then you shall take the other ram, and Aaron and his sons shall lay their hands on the head of the ram. Then you shall kill the ram, and take some of its blood and put it on the tip of the right ears of Aaron and his sons and on the thumbs of their right hands and on the big toes of their right feet, and sprinkle the [rest of the] blood around on the altar [of burnt offering]. Then you shall take some of the blood that is on the altar and some of the anointing oil, and sprinkle it on Aaron and his garments and on his sons and their garments. Now Aaron and his garments and his sons and their garments shall be consecrated (dedicated, made holy, declared sacred for God’s purpose). “You shall also take the fat of the ram, the fat tail, the fat that covers the intestines, the lobe of the liver, the two kidneys with the fat that is on them, and the right thigh; (for it is a ram of ordination), and one loaf of bread and one cake of oiled bread and one wafer out of the basket of the unleavened bread that is before the LORD; and you shall put all these in the hands of Aaron and his sons, and wave them as a wave offering before the LORD. Then you shall take them from their hands, add them to the burnt offering, and burn them on the altar for a sweet and soothing aroma before the LORD; it is an offering by fire to the LORD. “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. You 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. It 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. “The holy garments of Aaron shall be for his sons after him, to be anointed and ordained in them. That 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.