Leviticus 10
1 Ref Nadab and Abihu, the sons of Aaron, each took his censer, and put fire in it, and laid incense on it, and offered strange fire before Yahweh, which he had not commanded them.
2 Ref And fire came forth from before Yahweh, and devoured them, and they died before Yahweh.
3 Ref Then Moses said to Aaron, "This is what Yahweh spoke of, saying, "'I will show myself holy to those who come near me, And before all the people I will be glorified.'" Aaron held his peace.