Exodus 29:15-30

“Take one of the male sheep, and have Aaron and his sons put their hands on its head. Kill it, and take its blood and sprinkle it on all four sides of the altar. Then cut it into pieces and wash its inner organs and its legs, putting them with its head and its other pieces. Burn the whole sheep on the altar; it is a burnt offering made by fire to the LORD. Its smell is pleasing to the LORD. “Take the other male sheep, and have Aaron and his sons put their hands on its head. Kill it and take some of its blood. Put the blood on the bottom 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. Then sprinkle the rest of the blood against all four sides of the altar. Take some of the blood from the altar, and mix it with the special oil used in appointing priests. Sprinkle this on Aaron and his clothes and on his sons and their clothes. This will show that Aaron and his sons and their clothes are given to my service. “Then take the fat from the male sheep, the fat tail, and the fat that covers the inner organs. In addition, take the best part of the liver, both kidneys, and the fat around them, and the right thigh. (This is the male sheep to be used in appointing priests.) “Then take the basket of bread that you made without yeast, which you put before the LORD. From it take a loaf of bread, a cake made with olive oil, and a wafer. Put all of these in the hands of Aaron and his sons, and tell them to present them as an offering to the LORD. Then take them from their hands and burn them on the altar with the whole burnt offering. This is an offering made by fire to the LORD; its smell is pleasing to the LORD. Then take the breast of the male sheep used to appoint Aaron as priest, and present it before the LORD as an offering. This part of the animal will be your share. Set aside the breast and the thigh of the sheep that were used to appoint Aaron and his sons as priests. These parts belong to them. They are to be the regular share which the Israelites will always give to Aaron and his sons. It is the gift the Israelites must give to the LORD from their fellowship offerings. “The holy clothes made for Aaron will belong to his descendants so that they can wear these clothes when they are appointed as priests. Aaron’s son, who will become high priest after Aaron, will come to the Meeting Tent to serve in the Holy Place. He is to wear these clothes for seven days.