Numbers 16:34-38

And all Israel that were round about them fled at the cry of them: for they said, Lest the earth swallow us up also.

And there came out a fire from the LORD, and consumed the two hundred and fifty men that offered incense.

And the LORD spake unto Moses, saying,

Speak unto Eleazar the son of Aaron the priest, that he take up the censers out of the burning, and scatter thou the fire yonder; for they are hallowed.

The censers of these sinners against their own souls, let them make them broad plates for a covering of the altar: for they offered them before the LORD, therefore they are hallowed: and they shall be a sign unto the children of Israel.