“Now take Aaron your brother, and his sons with him, from among the children of Israel, that he may minister to Me as priest, Aaron and Aaron’s sons: Nadab, Abihu, Eleazar, and Ithamar.
Then Nadab and Abihu, the sons of Aaron, each took his censer and put fire in it, put incense on it, and offered profane fire before the Lord, which He had not commanded them.
And Moses spoke to Aaron, and to Eleazar and Ithamar, his sons who were left: “Take the grain offering that remains of the offerings made by fire to the Lord, and eat it without leaven beside the altar; for it is most holy.