Exodus 29:20-22

New Revised Standard Version, Anglicised Catholic Edition

²⁰ and you shall slaughter the ram, and take some of its blood and put it on the lobe of Aaron’s right ear and on the lobes of the right ears of his sons, and on the thumbs of their right hands, and on the big toes of their right feet, and dash the rest of the blood against all sides of the altar. ²¹ 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 vestments and on his sons and his sons’ vestments with him; then he and his vestments shall be holy, as well as his sons and his sons’ vestments.

²² You shall also take the fat of the ram, the fat-tail, the fat that covers the entrails, the appendage of the liver, the two kidneys with the fat that is on them, and the right thigh (for it is a ram of ordination),