Here, I. The family of Aaron is confirmed in the priests' office, Num 3:10. They had been called to it before, and consecrated; here they are appointed to wait on their priests' office: the apostle uses this phrase (Rom 12:7), Let us wait on our ministry. The office of the ministry requires a constant attendance and great diligence; so frequent are the returns of its work, and yet so transient its favourable opportunities, that it must be waited on. Here is repeated what was said before (Num 1:51): The stranger that cometh nigh shall be put to death, which forbids the invading of the priest's office by any other person whatsoever; none must come nigh to minister but Aaron and his sons only, all others are strangers. It also lays a charge on the priests, as door-keepers in God's house, to take care that none should come near who were forbidden by the law; they must keep off all intruders, whose approach would be to the profanation of the holy things, telling them that if they came near it was at their peril, they would die by the hand of God, as Uzza did. The Jews say that afterwards there was hung over the door of the temple a golden sword (perhaps alluding to that flaming sword at the entrance of the garden of Eden), on which was engraven, The stranger that cometh nigh shall be put to death.

II.A particular account is given of this family of Aaron; what we have met with before concerning them is here repeated. 1. The consecration of the sons of Aaron, Num 3:3. They were all anointed to minister before the Lord, though it appeared afterwards, and God knew it, that two of them were wise and two were foolish. 2. The fall of the two elder (Num 3:4): they offered strange fire, and died for so doing, before the Lord. This is mentioned here in the preamble to the law concerning the priesthood, for a warning to all succeeding priests; let them know, by this example, that God is a jealous God, and will not be mocked; the holy anointing oil was an honour to the obedient, but not a shelter to the disobedient. It is here said, They had no children, Providence so ordering it, for their greater punishment, that none of their descendants should remain to be priests, and so bear up their name who had profaned God's name. 3. The continuance of the two younger: Eleazar and Ithamar ministered in the sight of Aaron. It intimates, (1.) The care they took about their ministration not to make any blunders; they kept under their father's eye, and took instruction from him in all they did, because, probably, Nadab and Abihu got out of their father's sight when they offered strange fire. Note, It is good for young people to act under the direction and inspection of those that are aged and experienced. (2.) The comfort Aaron took in it; it pleased him to see his younger sons behave themselves prudently and gravely, when his two elder had miscarried. Note, It is a great satisfaction to parents to see their children walk in the truth, Jo3 1:4.

III.A grant is made of the Levites to be assistants to the priests in their work: Give the Levites to Aaron, Num 3:9. Aaron was to have a greater propriety in, and power over, the tribe of Levi than any other of the prices had in and over their respective tribes. There was a great deal of work belonging to the priests' office, and there were now only three pairs of hands to do it all, Aaron's and his two sons'; for it does not appear that they had either of them any children at this time, at least not any that were of age to minister, therefore God appoints the Levites to attend upon them. Note, Those whom God finds work for his will find help for. Here is, 1. The service for which the Levites were designed: they were to minister to the priests in their ministration to the Lord (Num 3:6), and to keep Aaron's charge (Num 3:7), as the deacons to the bishops in the evangelical constitution, serving at tables, while the bishops waited on their ministry. The Levites killed the sacrifices, and then the priests needed only to sprinkle the blood and burn the fat: the Levites prepared the incense, the priests burnt it. They were to keep, not only Aaron's charge, but the charge of the whole congregation. Note, It is a great trust that is reposed in ministers, not only for the glory of Christ, but for the good of his church; so that they must not only keep the charge of the great high priest, but must also be faithful to the souls of men, in trust for whom a dispensation is committed to them. 2. the consideration upon which the Levites were demanded; they were taken instead of the first-born. The preservation of the first-born of Israel, when all the first-born of the Egyptians (with whom they were many of them mingled) were destroyed, was looked upon by him who never makes any unreasonable demands as cause sufficient of the appropriating of all the first-born thenceforward to himself (Num 3:13): All the first-born are mine. That was sufficient to make them his, though he had given no reason for it, for he is the sole fountain and Lord of all beings and powers; but because all obedience must flow from love, and acts of duty must be acts of gratitude, before they were challenged into peculiar services they were crowned with peculiar favours. Note, When he that made us saves us we are thereby laid under further obligations to serve him and live to him. God's right to us by redemption corroborates the right he has to us by creation. Now because the first-born of a family are generally the favourites, and some would think it a disparagement to have their eldest sons servants to the priests, and attending before the door of the tabernacle, God took the tribe of Levi entire for his own, in lieu of the first-born, Num 3:12. Note, God's institutions put no hardships upon men in any of their just interests or reasonable affections. It was presumed that the Israelites would rather part with the Levites than with the first-born, and therefore God graciously ordered the exchange; yet for us he spared not his own Son.

And they shall keep his charge, and the charge of the whole congregation,.... The charge of Aaron and of all the people of Israel, which was to secure the sanctuary from being polluted or plundered: this the Levites were to be employed about, and thereby ease the high priest and the other priests, and the people, of what otherwise would have been incumbent on them:

before the tabernacle of the congregation; not within it, neither in the holy place, nor in the most holy place, where they might not enter, to do any service peculiar thereunto, but at the door of the tabernacle, and in the court of it, and in the rooms and chambers in it: and do the service of the tabernacle; not to offer sacrifices on the altar of the burnt offering, which stood in the court, and much less to burn incense on the altar of incense, and to him the lamps, and set on the shewbread in the holy place; and still less to enter into the most holy place, and do there what was to be done on the day of atonement; but to do all that is before observed, and to bring the people's offerings to the priest, and to assist in slaying them; and to keep all profane and polluted persons out of it, the tabernacle, as we find in later times; they were porters at it, and some of them were singers in it, and had the care of various things belonging to it: see Ch1 9:14.

Bring the tribe of Levi near--The Hebrew word "bring near" is a sacrificial term, denoting the presentation of an offering to God; and the use of the word, therefore, in connection with the Levites, signifies that they were devoted as an offering to the sanctuary, no longer to be employed in any common offices. They were subordinate to the priests, who alone enjoyed the privilege of entering the holy place; but they were employed in discharging many of the humbler duties which belonged to the sanctuary, as well as in various offices of great utility and importance to the religion and morals of the people.