John Calvin on Hebrews 10:4

4. For it is not possible, etc. He confirms the former sentiment with the same reason which he had adduced before, that the blood of beasts could not cleanse souls from sin. The Jews, indeed, had in this a symbol and a pledge of the real cleansing; but it was with reference to another, even as the blood of the calf represented the blood of Christ. But the Apostle is speaking here of the efficacy of the blood of beasts in itself. He therefore justly takes away from it the power of cleansing. There is also to be understood a contrast which is not expressed, as though he had said, “It is no wonder that the ancient sacrifices were insufficient, so that they were to be offered continually, for they had nothing in them but the blood of beasts, which could not reach the conscience; but far otherwise is the power of Christ’s blood: It is not then right to measure the offering which he has made by the former sacrifices.”

Hebrews Chapter 10:5-10

5. Wherefore when he cometh into the world, he saith, Sacrifice and offering thou wouldest not, but a body hast thou prepared me:

5. Quapropter egrediens in mundum dicit, Sacrificium et oblationem noluisti, corpus autem aptasti mihi;

6. In burnt offerings and sacrifices for sin thou hast had no pleasure.

6. Holocausta et victimas pro peccato non probasti;

7. Then said I, Lo, I come (in the volume of the book it is written of me,) to do thy will, O God.

7. Tunc dixi, Ecce adsum; in capite libri scriptum est de me, ut faciam, O Deus, voluntatem tuam.

8. 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;

8. Quum prius dixesset, sacrificium et oblationem, holocausta et victimas pro peccato noluisti, neque comprobasti quae secundum legem offeruntur;

9. Then said he, Lo, I come to do thy will, O God. He taketh away the first, that he may establish the second.

9. Tunc dixit, Ecce adsum ut faciam, O Deus, voluntatem tuam, tollit prius ut secundum statuat:

10. By the which will we are sanctified through the offering of the body of Jesus Christ once for all

10. In qua voluntate sanctificati sumus per oblationem corporis Iesu Christi semel.