Numbers 16:38-40

38As for the censers of these 1men who have sinned at the cost of their own lives, have them made into hammered sheets as plating for the altar, since they did present them before the Lord and they are holy; and 2they shall 3serve as a sign to the sons of Israel.” 39So the priest Eleazar took the bronze censers which the men who were burned had offered, and they hammered them out as plating for the altar, 40as a reminder to the sons of Israel so that 4no 5layman, anyone who was not of the 6descendants of Aaron, would approach 7to burn incense before the Lord; then he would not become like Korah and his group--just as the Lord had spoken to him 8through Moses.