Exodus 29:15-30

“Next Aaron and his sons must lay their hands on the head of one of the rams. Then slaughter the ram, and splatter its blood against all sides of the altar. Cut the ram into pieces, and wash off the internal organs and the legs. Set them alongside the head and the other pieces of the body, then burn the entire animal on the altar. This is a burnt offering to the LORD; it is a pleasing aroma, a special gift presented to the LORD. “Now take the other ram, and have Aaron and his sons lay their hands on its head. Then slaughter it, and apply some of its blood to the right earlobes of Aaron and his sons. Also put it on the thumbs of their right hands and the big toes of their right feet. Splatter the rest of the blood against all sides of the altar. Then take some of the blood from the altar and some of the anointing oil, and sprinkle it on Aaron and his sons and on their garments. In this way, they and their garments will be set apart as holy. “Since this is the ram for the ordination of Aaron and his sons, take the fat of the ram, including the fat of the broad tail, the fat around the internal organs, the long lobe of the liver, and the two kidneys and the fat around them, along with the right thigh. Then take one round loaf of bread, one thin cake mixed with olive oil, and one wafer from the basket of bread without yeast that was placed in the LORD’s presence. Put all these in the hands of Aaron and his sons to be lifted up as a special offering to the LORD. Afterward take the various breads from their hands, and burn them on the altar along with the burnt offering. It is a pleasing aroma to the LORD, a special gift for him. Then take the breast of Aaron’s ordination ram, and lift it up in the LORD’s presence as a special offering to him. Then keep it as your own portion. “Set aside the portions of the ordination ram that belong to Aaron and his sons. This includes the breast and the thigh that were lifted up before the LORD as a special offering. In the future, whenever the people of Israel lift up a peace offering, a portion of it must be set aside for Aaron and his descendants. This is their permanent right, and it is a sacred offering from the Israelites to the LORD. “Aaron’s sacred garments must be preserved for his descendants who succeed him, and they will wear them when they are anointed and ordained. The descendant who succeeds him as high priest will wear these clothes for seven days as he ministers in the Tabernacle and the Holy Place.