Moses, having done his part of the ceremony, now leaves Aaron and his sons to do theirs.
I. They must boil the flesh of their peace-offering, and eat it in the court of the tabernacle, and what remained they must burn with fire, Lev 8:31, Lev 8:32. This signified their thankful consent to the consecration: when God gave Ezekiel his commission, he told him to eat the roll, Eze 3:1, Eze 3:2.
II. They must not stir out of the court of the tabernacle for seven days, Lev 8:33. The priesthood being a good warfare, they must thus learn to endure hardness, and to disentangle themselves from the affairs of this life, Ti2 2:3, Ti2 2:4. Being consecrated to their service, they must give themselves wholly to it, and attend continually to this very thing. Thus Christ's apostles were appointed to wait for the promise of the Father, Act 1:4. During this time appointed for their consecration, they were daily to repeat the same sacrifices which were offered the first day, Lev 8:34. This shows the imperfection of the legal sacrifices, which, because they could not take away sin, were often repeated (Heb 10:1, Heb 10:2), but were here repeated seven times (a number of perfection), because they typified that one offering, which perfected for ever those that were sanctified. The work lasted seven days; for it was a kind of creation: and this time was appointed in honour of the sabbath, which, probably, was the last day of the seven, for which they were to prepare during the six days. Thus the time of our life, like the six days, must be our preparation for the perfection of our consecration to God in the everlasting sabbath: they attended day and night (Lev 8:35), and so constant should we be in our meditation on God's law, Psa 1:2. They attended to keep the charge of the Lord: we have every one of us a charge to keep, an eternal God to glorify, an immortal soul to provide for, needful duty to be done, our generation to serve; and it must be our daily care to keep this charge, for it is the charge of the Lord our Master, who will shortly call us to an account about it, and it is at our utmost peril if we neglect it. Keep it that you die not; it is death, eternal death, to betray the trust we are charged with; by the consideration of this we must be kept in awe. Lastly, We are told (Lev 8:36) that Aaron and his sons did all that was commanded. Thus their consecration was completed; and thus they set an example before the people of an exact obedience to the laws of sacrifices now newly given, and then they could with the better grace teach them. Thus the covenant of peace (Num 25:12), of life and peace (Mal 2:5), was made with Aaron and his sons; but after all the ceremonies that were used in their consecration there was one point of ratification which was reserved to be the honour and establishment of Christ's priesthood, which was this, that they were made priests without an oath, but Christ with an oath (Heb 7:21), for neither such priests nor their priesthood could continue, but Christ's is a perpetual and unchangeable priesthood.
Gospel ministers are compared to those who served at the altar, for they minister about holy things (Co1 9:13), they are God's mouth to the people and the people's to God, the pastors and teachers Christ has appointed to continue in the church to the end of the world: they seem to be meant in that promise which points at gospel times (Isa 66:21), I will take of them for priests and for Levites. No man may take this honour to himself, but he who upon trial is found to be clothed and anointed by the Spirit of God with gifts and graces to qualify him for it, and who with purpose of heart devotes himself entirely to the service, and is then by the word and prayer (for so every thing is sanctified), and the imposition of the hands of those that give themselves to the word and prayer, set apart to the office, and recommended to Christ as a servant and to the church as a steward and guide. And those that are thus solemnly dedicated to God ought not to depart from his service, but faithfully to abide in it all their days; and those that do so, and continue labouring in the word and doctrine, are to be accounted worthy of double honour, double to that of the Old Testament priests.

So Aaron and his sons did - This chapter shows the exact fulfillment of the commands delivered to Moses, Exodus 29; and consequently the complete preparation of Aaron and his sons to fill the awfully important office of priests and mediators between God and Israel, to offer sacrifices and make atonement for the sins of the people. "Thus," says Mr. Ainsworth, "the covenant of the priesthood was confirmed unto the tribe of Levi in Aaron and his sons, which covenant was life and peace, Mal 2:5. But these are made priests without an oath; also, there were many priests, because they were not suffered to continue by reason of death; and they served unto the example and shadow of heavenly things, offering gifts and sacrifices which could not make him who did the service perfect as pertaining to the conscience; for they were carnal ordinances imposed upon them till the time of reformation, that is, until the time of Christ, who was made a priest of God with an oath, and made surety of a better covenant established on better promises. And because he continueth for ever, he hath a priesthood which passeth not from one to another, and is a minister of the true tabernacle, which God pitched and not man. Not by the blood of bulls and of goats, but by his own blood, he entered once into the holy place, having found everlasting redemption for us; and is therefore able to save to the uttermost them who come unto God through him, as he ever liveth to make intercession for them." Taken in reference to his priesthood and sacrifice, all these rites and ceremonies are significant and edifying, but taken out of his relation, they would be as absurd and nugatory as the consecration of the Roman Pontifex Maximus, mentioned above by Prudentius.

So Aaron and his sons did all things which the Lord commanded by the hand of Moses. They submitted to have them done to them, and for them, what was done on the first day of their consecration, all the rest of the days; and they kept within the tabernacle all that time as was enjoined them.

Next: Leviticus Chapter 9

ye shall not go out of the door of the tabernacle of the congregation, &c.--After all these preliminaries, they had still to undergo a week's probation in the court of the tabernacle before they obtained permission to enter into the interior of the sacred building. During the whole of that period the same sacrificial rites were observed as on the first day, and they were expressly admonished that the smallest breach of any of the appointed observances would lead to the certain forfeiture of their lives [Lev 8:35].

Next: Leviticus Chapter 9