Hebrews 10:10 - Matthew Poole's English Annotations on the Holy Bible

By the which will; that spoken of Psalms 40:8, that will and command of God given to Christ, God-man, that he should once offer up his body a sacrifice for sin, which he willingly and heartily obeyed, Philippians 2:8. We are sanctified: sanctified is to be taken largely, for a communication to us of all the benefits of redemption, as pardon, reconciliation, absolution from punishment, renovation of God's image, and such a discharge of sin at last, as never to be guilty of it more, perfection of grace in glory. Through the offering; the volutarily and heartily yielding it up, and presenting the blood of it to the Father within the veil in heaven to atone him, according to his own command and will, without which it would not have been accepted by him, Luke 23:46; compare 1 Thessalonians 20:15,17,18 19:28,30. Of the body of Jesus once for all: it was that part of Christ's person that was to die a sacrifice, and the blood of it that was to be shed for purchasing the remission of sins, as appears in the memorial of it, Luke 22:19,20; the very body of God-man, Acts 20:28. The once offering of which was eternally available to take away sin from sinners, and perfect them to glory. So that God's end being once reached in it, it is of perpetual virtue to apply its fruits to believing penitents, and needs not any repetition.