Leviticus 10:8-15 - Lasting Statutes
8 Jehovah said to Aaron: 9 Never drink beer or wine when you or your sons enter the sacred tent. If you do, you will die right there! This is a long lasting law from generation to generation. 10 You must learn the difference (distinction) between what is holy and what is not holy and between the clean and the unclean. 11 You must also teach the people of Israel everything that I commanded Moses to say to them.
12 Moses spoke to Aaron and his two remaining sons, Eleazar and Ithamar. He said: Take the grain offering that is left over from the food offered to Jehovah. Bake unleavened bread with it and eat it beside the altar. This is because this offering is very holy. 13 Eat it in a holy place. It is the part that belongs to you and your sons from the food offered to Jehovah. That is what Jehovah commanded me. 14 You and your families may eat the breast and the hind leg that are presented as the special gift and the special contribution to Jehovah for the priests. You may eat them in any ritually clean place. These offerings have been given to you and your children as the part that belongs to you from the fellowship offerings of the people of Israel. 15 They shall bring the hind leg and the breast at the time the fat is presented as a food offering to Jehovah. These parts belong to you and your children from generation to generation, just as Jehovah commanded.