Hebrews 10:8

"you did not desire nor did you take pleasure in."Paul himself interprets the Davidic more clearly. "which are offered according to the law," that is, the Jewish law, and they are offered by the Jews. Do you see that before the descent, the sacrifices were …

"Above when He said, Sacrifice, and offering, and burnt-offerings, and offering for sin Thou wouldest not, neither hadst pleasure therein, which are offered by the Law, then He said, Lo! I come to do Thy will, O God! He taketh away the first that He may establish the second." So that henceforward this is done in vain, although it is done; for what need is there of medicines where there are no wounds? On this account He ordained offerings "continually," because of their want of power, and that a remembrance of sins might be made.

In what has gone before he had shown that the sacrifices were unavailing for perfect purification, and were a type, and greatly defective. Since then there was this objection to his argument, If they are types, how is it that, after the truth is come, they have not ceased, nor given place, but are still performed? he here accordingly labors at this very point, showing that they are no longer performed, even as a figure, for God does not accept them. And this again he shows not from the New Testament, but from the prophets, bringing forward from times of old the strongest testimony, that it comes to an end, and ceases, and that they do all in vain, "alway resisting the Holy Ghost." And he shows over and above that they cease not now only, but at the very coming of the Messiah, nay rather, even before His coming: and how it was that Christ did not abolish them at the last, but they were abolished first, and then He came; first they were made to cease, and then He appeared. That they might not say, Even without this sacrifice, and by means of those, we could have been well pleasing unto God, He waited for these sacrifices to be convicted of weakness, and then He appeared; for (He says) "sacrifice and offering Thou wouldest not." Hereby He took all away; and having spoken generally, He says also particularly, "In burnt-offerings and sacrifice for sin Thou hadst no pleasure." But "the offering" was everything except the sacrifice. "Then said I, Lo! I come." Of whom was this spoken? of none other than the Christ. Here he does not blame those who offer, showing that it is not because of their wickednesses that He does not accept them, as He says elsewhere, but because the thing itself has been convicted for the future and shown to have no strength, nor any suitableness to the times. What then has this to do with the "sacrifices" being offered "oftentimes"? […]

Christ spoke, "while coming into the world," not "after he had entered it." But manifestly he was already entering it when he promised David and maintained that he would seat one from the fruit of his loins on his throne until the age would come. …

491. – Then when he says, when he said above, he explains the authority he quoted. In regard to this he does two things: first, by assigning the order in which he shall speak, he states the difference between the Old and New Testaments; secondly, …