And he said to Moses, Come up to the Lord, you and Aaron, and Nadab and Abihu and seventy of the chiefs of Israel; and give me worship from a distance.
And put the linen bands round Aaron and his sons, and the head-dresses on them, to make them priests by my order for ever: so you are to make Aaron and his sons holy to me.
And Moses said to Aaron and to Eleazar and Ithamar, his sons who were still living, Take the rest of the meal offering from the offerings of the Lord made by fire, and take it for your food, without leaven, at the side of the altar, for it is most holy.
And you and your sons with you are to be responsible as priests for the altar and everything on it, and everything inside the veil; you are to do the work of priests; I have given you your position as priests; and any other man who comes near will be put to death.
And Nadab and Abihu were put to death before the Lord when they made an offering of strange fire before the Lord, in the waste land of Sinai, and they had no children: and Eleazar and Ithamar did the work of priests before Aaron their father.