And take you to you Aaron your brother, and his sons with him, from among the children of Israel…
The Hebrew priesthood was instituted because the people were not qualified to draw near to God in person. By virtue of their election, the people of Jehovah were entitled to dwell in His habitation, but their consciousness of sin made them afraid of Him: therefore, in condescension to their inability to understand the greatness of His love, He provided a class of persons who, as the representatives of His elect, might in their stead enter the Tabernacle. To draw near to God, and to be a priest, are equivalent expressions. Aaron drew near in behalf of those who were elected to have spiritual communion with God, but were not yet delivered from bondage to fear; and his admission within the habitation signified that they were entitled to a corresponding access in spirit, that they were called a kingdom of priests for the reason that they might thus draw near to God in spiritual fellowship. By his office he was qualified to do outwardly and symbolically what all might do in spirit and in truth. But, before Aaron could enter the holy habitation in behalf of the people, he must officiate at the altar of sacrifice, and expiate sin; for his constituents were sinful, and the representation of their approach to God as members of His household must be preceded by signs that their sin was taken away: otherwise it might be inferred that Jehovah was indifferent whether His people were holy or unholy. The Hebrew priesthood therefore symbolized in general, the expiation of sin, and the admission to filial intercourse with God effected thereby.
(E. E. Atwater.)
Parallel VersesKJV: And take thou unto thee Aaron thy brother, and his sons with him, from among the children of Israel, that he may minister unto me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.
WEB: "Bring Aaron your brother, and his sons with him, near to you from among the children of Israel, that he may minister to me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.