Numbers 16:40-41

16:40 It was a memorial for the Israelites, that no outsider who is not a descendant of Aaron should approach to burn incense before the Lord, that he might not become like Korah and his company – just as the Lord had spoken by the authority of Moses. 16:41 But on the next day the whole community of Israelites murmured against Moses and Aaron, saying, “You have killed the Lord’s people!”