Leviticus 10:1-11

That same day Nadab and Abihu, Aaron’s sons, took their censers, put hot coals and incense in them, and offered “strange” fire to GOD—something GOD had not commanded. Fire blazed out from GOD and consumed them—they died in GOD’s presence. Moses said to Aaron, “This is what GOD meant when he said, To the one who comes near me, I will show myself holy; Before all the people, I will show my glory.” Aaron was silent. Moses called for Mishael and Elzaphan, sons of Uzziel, Aaron’s uncle. He said, “Come. Carry your dead cousins outside the camp, away from the Sanctuary.” They came and carried them off, outside the camp, just as Moses had directed. Moses then said to Aaron and his remaining sons, Eleazar and Ithamar, “No mourning rituals for you—unkempt hair, torn clothes—or you’ll also die and GOD will be angry with the whole congregation. Your relatives—all the People of Israel, in fact—will do the mourning over those GOD has destroyed by fire. And don’t leave the entrance to the Tent of Meeting lest you die, because GOD’s anointing oil is on you.” They did just as Moses said. * * * GOD instructed Aaron: “When you enter the Tent of Meeting, don’t drink wine or strong drink, neither you nor your sons, lest you die. This is a fixed rule down through the generations. Distinguish between the holy and the common, between the ritually clean and unclean. Teach the People of Israel all the decrees that GOD has spoken to them through Moses.”