Nadav and Avihu, the sons of Aharon, each took his censer, and put fire in it, and laid incense on it, and offered strange fire before the LORD, which he had not commanded them.
and he spoke to Korach and to all his company, saying, In the morning the LORD will show who are his, and who is holy, and will cause him to come near to him: even him whom he shall choose he will cause to come near to him.
and put fire in them, and put incense on them before the LORD tomorrow: and it shall be that the man whom the LORD does choose, he [shall be] holy: you take too much on you, you sons of Levi.