35 Then fire came out from the Lord, burning up the two hundred and fifty men who were offering the perfume. 36 And the Lord said to Moses, 37 Say to Eleazar, the son of Aaron the priest, that he is to take out of the flames the vessels with the perfumes in them, turning the fire out of them, for they are holy; 38 And let the vessels of those men, who with their lives have made payment for their sin, be hammered out into plates as a cover for the altar; for they have been offered before the Lord and are holy; so that they may be a sign to the children of Israel. 39 So Eleazar the priest took the brass vessels which had been offered by those who were burned up, and they were hammered out to make a cover for the altar: 40 To be a sign, kept in memory for ever by the children of Israel, that no man who is not of the seed of Aaron has the right of burning spices before the Lord, so that he may not be like Korah and his band: as the Lord said to him by the mouth of Moses.

Matthew Henry's Commentary on Numbers 16:35-40

Commentary on Numbers 16:35-40

(Read Numbers 16:35-40)

A fire went out from the Lord, and consumed the two hundred and fifty men that offered incense, while Aaron, who stood with them, was preserved alive. God is jealous of the honour of his own institutions, and will not have them invaded. The sacrifice of the wicked is an abomination to the Lord. The censers are devoted, and, as all devoted things, must be made serviceable to the glory of God. This covering of the altar would remind the children of Israel of this event, that others might hear and fear, and do no more presumptuously. They brought destruction on themselves both in body and soul. Thus all who break the law and neglect the gospel choose and love death.