Nadab and Abihu were the sons of Aaron, each took his censer, put fire in it, and laid incense on it. They offered an unholy fire before the Lord, such as he had not commanded them. The fire came forth from the presence of the Lord and devoured them, and they died before the Lord.

Moses said to Aaron, this is what the Lord has said, I will show myself holy among those who are near me, and before all the people I will be glorified. Aaron held his peace.

Moses called Mishael and Elzaphan, the sons of Uziel the uncle of Aaron, and said to them, draw near, carry your brethren from before the sanctuary out of the camp. They drew near and carried them in their coats out of the camp, as Moses had said.

Moses said to Aaron and Eleazer and Ithamar, his sons, do not let the hair of your heads hang loose, and do not rend your clothes, lest you die, and lest wrath come upon all the congregations, but your brethren the whole house of Israel, may bewail the burning which the lord has kindled.

Do not go out from the door of the tent of meeting, lest you die, for the anointing oil of the lord is upon you. They did this according to the word of Moses.

The Lord spoke to Aaron, saying, drink no wine nor strong drink, you nor your sons with you when you go into the tent of meeting, lest you die. It shall be a statute forever throughout your generations.

You're to distinguish between the holy and the common, and between the unclean and the clean, and you are to teach the people of Israel all the statutes which the lord has spoken to them by Moses.
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