Leviticus 10:1-7

1Now Aaron’s sons Nadab and Abihu each took his own censer, put fire in it, laid incense over it, and offered unauthorized fire before Adonai—which He had not commanded them.

2So fire came out from the presence of Adonai and consumed them. So they died before Adonai.

3Then Moses said to Aaron, “This is what Adonai spoke of, saying: To those who are near Me I will show myself holy. Upon the faces of all the people I will be glorified.” Then Aaron kept silent.

4Then Moses called Mishael and Elzaphan, the sons of Aaron’s uncle Uzziel, and said to them, “Come near, carry your relatives away from the front of the Sanctuary to outside of the camp.”

5So they drew near and carried them, still in their tunics, outside of the camp, as Moses had said.

6Then Moses said to Aaron, and to Eleazar and Ithamar his sons: “Do not uncover your heads or tear your clothes, so you may not die and He will not be angry with the entire congregation. But let your kinsmen—the whole house of Israel—mourn over the burning that Adonai has kindled.

7You must not go out from the entrance of the Tent of Meeting, or you will die, for the anointing oil of Adonai is on you.” So they acted according to the word of Moses.