Exodus 29:21-23

New Century Version

²¹ 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.

²² “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.)

²³ “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.