John Chrysostom
Blessed Paul now intends to show that this New Covenant is far better than the Old. He does this by developing his thoughts from afar. In the New Covenant there was nothing material or figurative. There was no temple, no holy of holies, no priest clothed in such ornaments, and no legal rites. Everything was higher and more perfect. There was nothing bodily, but all was spiritual. Since spiritual things do not act as powerfully on the weakest people as bodily things do, the apostle sets forth this whole teaching. Observe his wisdom. He begins with the first priest, constantly calling him high priest, and first shows in him the difference between the New and the Old Covenants. For this purpose he first defines what a priest is. He shows the qualities of a priest and the signs of priesthood.
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A difficulty arose here, because Christ was not of noble birth, did not come from the priestly tribe, and was not a priest on earth. Therefore some could say, "What kind of priest is He?" So the apostle acts here as he did in the Epistle to the Romans. There he expounded the hard-to-understand truth that faith accomplishes what the labor of the Law and the struggle of life could not accomplish. Wishing to prove that what seemed impossible had been fulfilled and justified, he pointed to the patriarch Abraham and turned the whole discourse to that time (Rom 4). So here also he points to another way to the priesthood, presenting as examples those who received it before. As in speaking about punishment he sets forth not only Gehenna, but also what happened to the forefathers, so here he first confirms the truth by present realities. He ought to have proved earthly things by heavenly things. But because his hearers were weak, he does the opposite. He first presents what Christ and the priest have in common. Then he shows wherein He has the advantage. In a comparison, superiority is perceived when both likeness and surpassing excellence are seen. If this is absent, there can be no comparison. "For every high priest chosen from among men." This Christ has in common with the priest. "Is appointed for men in things pertaining to God." This too is common. "To offer gifts and sacrifices" for the people. This also is common, though not completely. But the rest is no longer so. "He can have compassion on the ignorant and erring, since he himself is also beset with weakness. Therefore he is bound to offer sacrifices for sins, as for the people, so also for himself."