5 Therefore when he comes into the world, he says,
“Sacrifice and offering you didn’t desire,
but you prepared a body for me; 6 You had no pleasure in whole burnt offerings and sacrifices for sin.
7 Then I said, ‘Behold, I have come (in the scroll of the book it is written of me)
to do your will, O God.’” [1] 8 Previously saying, “Sacrifices and offerings and whole burnt offerings and sacrifices for sin you didn’t desire, neither had pleasure in them” (those which are offered according to the law), 9 then he has said, “Behold, I have come to do your will.” He takes away the first, that he may establish the second, 10 by which will we have been sanctified through the offering of the body of Jesus Christ once for all.
Matthew Henry's Commentary on Hebrews 10:5-10
Commentary on Hebrews 10:1-10
(Read Hebrews 10:1-10)
The apostle having shown that the tabernacle, and ordinances of the covenant of Sinai, were only emblems and types of the gospel, concludes that the sacrifices the high priests offered continually, could not make the worshippers perfect, with respect to pardon, and the purifying of their consciences. But when "God manifested in the flesh," became the sacrifice, and his death upon the accursed tree the ransom, then the Sufferer being of infinite worth, his free-will sufferings were of infinite value. The atoning sacrifice must be one capable of consenting, and must of his own will place himself in the sinner's stead: Christ did so. The fountain of all that Christ has done for his people, is the sovereign will and grace of God. The righteousness brought in, and the sacrifice once offered by Christ, are of eternal power, and his salvation shall never be done away. They are of power to make all the comers thereunto perfect; they derive from the atoning blood, strength and motives for obedience, and inward comfort.