Numbers 16:40 in the King James Version
To be a memorial unto the children of Israel, that no stranger, which is not of the seed of Aaron, come near to offer incense before the LORD; that he be not as Korah, and as his company: as the LORD said to him by the hand of Moses.
Context
39 Eleazar the priest took the bronze censers which those who were burned had offered; and they beat them out for a covering of the altar,
40 to be a memorial to the children of Israel, to the end that no stranger who isn’t of the offspring of Aaron, would come near to burn incense before the LORD, that he not be as Korah and as his company; as the LORD spoke to him by Moses.
41 But on the next day all the congregation of the children of Israel complained against Moses and against Aaron, saying, “You have killed the LORD’s people!”