Exodus 29:22-24

22“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.

23Then 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.

24Put all these in the hands of Aaron and his sons to be lifted up as a special offering to the Lord.