Thy brethren also of the tribe of Levi - may be joined unto thee - There is a fine paronomasia, or play upon words, in the original. לוי Levi comes from the root לוה lavah, to join to, couple, associate: hence Moses says, the Levites, ילוו yillavu, shall be joined, or associated with the priests; they shall conjointly perform the whole of the sacred office, but the priests shall be principal, the Levites only their associates or assistants.

And to thy brethren also of the tribe of Levi, the tribe of thy father,.... For his father Amram was of that tribe, and so the Levites were his brethren, as he is directed to consider them; which might serve to conciliate their minds, and make them easy with respect to his enjoyment of the priesthood:

bring them with thee; into the court of the tabernacle, for further they might not go:

that they maybe joined unto thee: as their name of Levites signifies, persons joined and united to others, as they were to the priests: see reason of their patriarch's name Levi in Genesis 29:34,

and minister unto thee: be assisting to the priests in killing the sacrifices, receiving the blood, and flaying the beasts, and in other things about the sanctuary, Numbers 3:6,

but thou, and thy sons with thee, shall minister before the tabernacle of witness; which was the most holy place, where were the ark of the testimony or witness, and the tables of the covenant; and they might be said to minister before that, when they ministered in the holy place, which was before it, when they burned incense upon the altar of incense, ordered the shewbread, and trimmed the lamps of the candlestick, which none but the priests the sons of Aaron might do.

Aaron was also to bring his (other) brethren (sc., to the sanctuary), viz., the tribe of Levi, that is to say, the Gershonites and Merarites, that they might attach themselves to him and serve him, both him (ואתּה) and his sons, before the tent of testimony, and discharge the duties that were binding upon them, according to Numbers 4:24., Numbers 4:31. (cf. Numbers 3:6-7; Numbers 8:26). Only they were not to come near to the holy vessels and the altar, for that would bring death both upon them and the priests (see at Numbers 4:15). On Numbers 18:4, cf. Numbers 1:53 and Numbers 3:7.

And thy brethren also of the tribe of Levi, the tribe of thy father, bring thou with thee, that they may be joined unto thee, and minister unto thee: but thou and thy sons with thee shall minister before the tabernacle of witness.

18:2 Unto thee - About sacrifices and offerings and other things, according to the rules I have prescribed them. The Levites are said to minister to Aaron here, to the church, Num 16:9, and to God, Deu 10:8. They shall not contend with thee for superiority, as they have done, but shall be subordinate to thee. Thy sons with thee - Or, both to thee, and to thy sons with thee: Which translation may seem to be favoured by the following words, before the tabernacle, which was the proper place where the Levites ministered. Besides, both the foregoing words, and the two following verse s, entirely speak of the ministry of the Levites, and the ministry of the priests is distinctly spoken of, Nu 18:5.

2-7. thy brethren also of the tribe of Levi-The departments of the sacred office, to be filled respectively by the priests and Levites, are here assigned to each. To the priests was committed the charge of the sanctuary and the altar, while the Levites were to take care of everything else about the tabernacle. The Levites were to attend the priests as servants-bestowed on them as "gifts" to aid in the service of the tabernacle-while the high and dignified office of the priesthood was a "service of gift." "A stranger," that is, one, neither a priest nor a Levite, who should intrude into any departments of the sacred office, should incur the penalty of death.

18:1-7 The people complained of their difficulty and peril in drawing near to God. God here gives them to understand, that the priests should come near for them. Aaron would see reason not to be proud of his preferment, when he considered the great care and charge upon him. Be not high-minded, but fear. The greater the trust of work and power that is committed to us, the greater danger there is of betraying that trust. This is a good reason why we should neither envy others' honours, nor desire high places.