Exodus 29:13-22

¹³ Next take all the fat that covers the innards, fat from around the liver and the two kidneys, and burn it on the Altar. ¹⁴ But the flesh of the bull, including its hide and dung, you will burn up outside the camp. It is an Absolution-Offering. ¹⁵ "Then take one of the rams. Have Aaron and his sons place their hands on the head of the ram. ¹⁶ Slaughter the ram and take its blood and throw it against the Altar, all around. ¹⁷ Cut the ram into pieces; wash its innards and legs, then gather the pieces and its head ¹⁸ and burn the whole ram on the Altar. It is a Whole-Burnt-Offering to God, a pleasant fragrance, an offering by fire to God. ¹⁹ "Then take the second ram. Have Aaron and his sons place their hands on the ram's head. ²⁰ Slaughter the ram. Take some of its blood and rub it on Aaron's right earlobe and on the right earlobes of his sons, on the thumbs of their right hands and on the big toes of their right feet. Sprinkle the rest of the blood against all sides of the Altar. ²¹ Then take some of the blood that is on the Altar, mix it with some of the anointing oil, and splash it on Aaron and his clothes and on his sons and their clothes so that Aaron and his clothes and his sons and his sons' clothes will be made holy. ²² "Take the fat from the ram, the fat tail, the fat that covers the innards, the long lobe of the liver, the two kidneys and the fat on them, and the right thigh: this is the ordination ram.