Leviticus 10:1-7

1And Nadab and Abihu, the sons of Aaron, took either of them his censer, and put fire therein, and put incense thereon, and offered profane fire before Yhwh, which he commanded them not.

2And there went out fire from Yhwh, and devoured them, and they died before Yhwh.

3Then Moses said unto Aaron, This is it that Yhwh spake, saying, I will be sanctified in them that come nigh me, and before all the people I will be glorified. And Aaron held his peace.

4And Moses called Mishael and Elzaphan, the sons of Uzziel the uncle of Aaron, and said unto them, Come near, carry your brethren from before the sanctuary out of the camp.

5So they went near, and carried them in their coats out of the camp; as Moses had said.

6And Moses said unto Aaron, and unto Eleazar and unto Ithamar, his sons, Uncover not your heads, neither rend your clothes; lest ye die, and lest wrath come upon all the people: but let your brethren, the whole house of Israel, bewail the burning which Yhwh hath kindled.

7And ye shall not go out from the door of the tabernacle of the congregation, lest ye die: for the anointing oil of Yhwh is upon you. And they did according to the word of Moses.