2. Speak unto Aaron and to his sons, that they separate themselves from the holy things—"To separate" means, in the language of the Mosaic ritual, "to abstain"; and therefore the import of this injunction is that the priests should abstain from eating that part of the sacrifices which, though belonging to their order, was to be partaken of only by such of them as were free from legal impurities.

     3. Whosoever he be . . . that goeth unto the holy things—The multitude of minute restrictions to which the priests, from accidental defilement, were subjected, by keeping them constantly on their guard lest they should be unfit for the sacred service, tended to preserve in full exercise the feeling of awe and submission to the authority of God. The ideas of sin and duty were awakened in their breasts by every case to which either an interdict or an injunction was applied. But why enact an express statute for priests disqualified by the leprosy or polluting touch of a carcass [Le 22:4], when a general law was already in force which excluded from society all persons in that condition? Because priests might be apt, from familiarity, to trifle with religion, and in committing irregularities or sins, to shelter themselves under the cloak of the sacred office. This law, therefore, was passed, specifying the chief forms of temporary defilement which excluded from the sanctuary, that priests might not deem themselves entitled to greater license than the rest of the people; and that so far from being in any degree exempted from the sanctions of the law, they were under greater obligations, by their priestly station, to observe it in its strict letter and its smallest enactments.

     4-6. wash his flesh with water—Any Israelite who had contracted a defilement of such a nature as debarred him from the enjoyment of his wonted privileges, and had been legally cleansed from the disqualifying impurity, was bound to indicate his state of recovery by the immersion of his whole person in water. Although all ceremonial impurity formed a ground of exclusion, there were degrees of impurity which entailed a longer or shorter period of excommunication, and for the removal of which different rites required to be observed according to the trivial or the malignant nature of the case. A person who came inadvertently into contact with an unclean animal was rendered unclean for a specified period; and then, at the expiry of that term, he washed, in token of his recovered purity. But a leper was unclean so long as he remained subject to that disease, and on his convalescence, he also washed, not to cleanse himself, for the water was ineffectual for that purpose, but to signify that he was clean. Not a single case is recorded of a leper being restored to communion by the use of water; it served only as an outward and visible sign that such a restoration was to be made. The Book of Leviticus abounds with examples which show that in all the ceremonial washings, as uncleanness meant loss of privileges, so baptism with water indicated a restoration to those privileges. There was no exemption; for as the unclean Israelite was exiled from the congregation, so the unclean priest was disqualified from executing his sacred functions in the sanctuary; and in the case of both, the same observance was required—a formal intimation of their being readmitted to forfeited privileges was intimated by the appointed rite of baptism. If any one neglected or refused to perform the washing, he disobeyed a positive precept, and he remained in his uncleanness; he forbore to avail himself of this privilege, and was therefore said to be "cut off" from the presence of the Lord.

     8. dieth of itself—The feelings of nature revolt against such food. It might have been left to the discretion of the Hebrews, who it may be supposed (like the people of all civilized nations) would have abstained from the use of it without any positive interdict. But an express precept was necessary to show them that whatever died naturally or from disease, was prohibited to them by the operation of that law which forbade them the use of any meat with its blood.

     Le 22:10-16. WHO OF THE PRIESTS' HOUSE MAY EAT OF THEM.