(2.) There were many things in which they differed; as,
1st, The priests under the law were mere men; but Christ, though truly man, was more than a man. Though he was made, in all the essential properties of the human nature, like unto us; yet he had a divine nature, in which he was equal with God; and therefore his ministry could not but be infinitely more valuable, than that of any others, who were types of him.
2dly, The priests under the law were of the tribe of Levi, and therefore theirs is called, by the apostle, The Levitical priesthood, Heb. vii. 11. But our Saviour, as Man, was of the tribe of Judah, and therefore did not derive his priesthood from them by descent, as they did from one another, chap. vii. 13, 14.
3dly, The sacrifices which were offered by the priests under the law, were no other than the blood of beasts, appointed for that purpose; but Christ offered his own blood, chap. ix. 12,14.
4thly, The priests under the law were sinners; accordingly Aaron was obliged first to offer up sacrifice for his own sins, and then for the peoples’, chap. vii. 27. but Christ needed not to do this, for he was holy, harmless, undefiled, and separate from sinners, ver. 26.
5thly, The sacrifices offered by the priests under the law, could not expiate, or take away sins, chap. x. 4. but Christ, by the offering that he has made, has for ever perfected them that are sanctified, or made a full atonement for all sin. Now since it is said, that it was impossible for sin to be expiated by the sacrifices under the law, we are to enquire in what sense atonement was, or could not be made thereby: if the sin was of such a nature, or that it was punishable by human judicature, the making atonement by sacrifice, in many instances, put a stop to the prosecution, and took away the guilt, which the person had contracted, as to any farther proceedings of men against him; for this was an ordinance appointed by God, in which the offender had an external and visible recourse to the blood of Jesus, signified by the blood which he offered; and this is supposed to have been accompanied with repentance for the sin committed, which gave satisfaction to the church, as to what concerned this matter, as offensive to them; and they could demand no more of the offender, in order to their declaring, that, so far as they were judges, his guilt was expiated, by that which was signified by the sacrifice which he brought, which was offered for him, and therefore the crime that he committed was pardoned.
It is true, there were some crimes that were to be punished with death; and, in this case, the church was not to receive satisfaction by sacrifice, nor were proceedings against the guilty person to be stopped by this means: and, among other crimes, that of wilful murder was one which admitted of no sacrifice; so, I think, the meaning of what the Psalmist says, is to be understood, Thou desirest not sacrifice, else would I give it, Psal. li. 16. as implying, that the guilt of blood was such, that he had hereby forfeited his life, which, though no subject had power enough to take away, yet God might, for this, have set his face against him, and have cut him off, in a visible manner, from among his people, as he often did, when crimes were not punished in a legal way. This punishment God graciously remitted, when he told him, by Nathan, that he had put away his sin, he should not die, 2 Sam. xii. 13. and David, when he testifies his repentance, in this Psalm, would have offered sacrifice, but he finds that none was ordained for the sin he had committed. In other cases, indeed, the church was satisfied, excommunication, or some other punishment, prevented, and the offender taken into favour, by his offering sacrifice, in which respect, this service is called making atonement for him: but, in other respects, it was impossible to expiate sin thereby, so as to procure justification in the sight of God; for they could not expiate it, as to what concerns the conscience, as it is said, that the sacrifices could not make him, that did the service, perfect, as pertaining to the conscience, Heb. ix. 9. so that, that guilt of sin, which burdens the consciences of men, as having more immediately to do with God, was taken away only by Christ’s sacrifice; in which respect, the efficacy hereof far exceeds all the ends and designs of the sacrifices, which were offered under the law. And this farther appears, inasmuch as these sacrifices were to be repeated, there being a continual remembrance of sin; for this supposes, that sin was not hereby wholly expiated in the sight of God: and, in this, they also differ from the sacrifice Christ offered, inasmuch as that, being effectual to take away sin, was offered but once, chap. x. 10, 14.
6thly, The priests under the law were mortal, and therefore the priesthood was successive; but Christ, as he was not from them by a lineal descent so he had no successor in his priesthood. In this, the apostle opposes him to them, when he says, They truly were many, because they were not suffered to continue, by reason of death; but this man, because he continueth ever, hath an unchangeable priesthood, chap. vii. 23.
Again, as the priesthood ceased, in particular persons, by death, so the high priesthood was sometimes taken away from those that were advanced unto it, for some instances of maladministration: thus the high priesthood, for some time, descended in the line of Eleazar, the elder branch of Aaron’s family; and afterwards, during the reign of the judges, it was transferred to the younger branch of his family, namely, the descendants from Ithamar, in which line it was when Eli was high priest; and afterwards, when his sons, by their vile behaviour, forfeited their right to the high priesthood, and God threatened that he would take it away from his family, 1 Sam. ii. 30. compared with ver. 35. and 1 Kings ii. 35. (which was accomplished when Abiathar, in the beginning of Solomon’s reign, was thrust from the priesthood) it again descended in Zadock, to the elder branch of Aaron’s family.
Again the priesthood itself was not designed to continue for ever, but only during that dispensation; after which, there was to be no altar, priests, nor sacrifice: But Christ’s priesthood, as it was unalienable, so it could never be forfeited by male-administration, or descend to any other; therefore he is said to be a Priest for ever, which seems to be the meaning of that scripture, in which his priesthood is considered, as different from the Levitical priesthood, as those priests were made without an oath; but this with an oath, by him that said unto him, The Lord sware, and will not repent, Thou art a priest for ever, chap. vii. 21. which oath not only signifies the establishing of him in his priesthood, but it secured to him that he should never fall from it.