Numbers 16:37-39

Amplified Bible

³⁷ “Tell Eleazar the son of Aaron, the priest, that he is to pick up the censers from the midst of the blaze for they are holy; and you scatter the burning coals abroad. ³⁸ As for the censers of these people who have sinned at the cost of their lives, have the censers made into hammered sheets as a plating for the altar [of burnt offering], for they were presented before the Lord and they are sacred. They shall be a [warning] sign to the sons of Israel.” ³⁹ So Eleazar the priest took the bronze censers which the Levites who were burned had offered, and they were hammered out [into broad sheets] as a plating for the [bronze] altar [of burnt offering],