"Also, join to yourself your brother Aaron, with his sons from the midst of the sons of Israel, so that they may exercise the priesthood for me: Aaron, Nadab and Abihu, Eleazar and Ithamar.
And the sons of Aaron, Nadab and Abihu, picking up their censers, placed fire in them and incense upon them, offering in the sight of the Lord a strange fire, such as was not instructed of them.
And Moses spoke to Aaron, and to his sons, Eleazar and Ithamar, who were remaining: "Take the sacrifice which remains from the oblation of the Lord, and eat it without leaven next to the altar, because it is the Holy of holies.