Have your brother Aaron, and with him his sons, brought to you, from among the Israelites, that they may be my priests: Nadab and Abihu, Eleazar and Ithamar, Aaron’s sons.
Aaron’s sons Nadab and Abihu took their censers and, putting incense on the fire they had set in them, they offered before the Lord unauthorized fire, such as he had not commanded.
Moses said to Aaron and his surviving sons, Eleazar and Ithamar, “Take the grain offering left over from the oblations to the Lord, and eat it beside the altar in the form of unleavened cakes, since it is most holy.