Hebrews 10:9

Then said he--"At that time (namely, when speaking by David's mouth in the fortieth Psalm) He hath said." The rejection of the legal sacrifices involves, as its concomitant, the voluntary offer of Jesus to make the self-sacrifice with which God is well pleased (for, indeed, it was God's own "will" that He came to do in offering it: so that this sacrifice could not but be well pleasing to God). I come--"I am come." taketh away--"sets aside the first," namely, "the legal system of sacrifices" which God wills not. the second--"the will of God" (Heb 10:7, Heb 10:9) that Christ should redeem us by His self-sacrifice.

The apostle knew very well that the Hebrews, to whom he wrote, were strangely fond of the Levitical dispensation, and therefore he fills his mouth with arguments to wean them from it; and in order thereto proceeds in this chapter, I. To lay low the whole of that priesthood and sacrifice (Heb 10:1-6). II. He raises and exalts the priesthood of Christ very high, that he might effectually recommend him and his gospel to them (Heb 10:7-18). III. He shows to believers the honours and dignities of their state, and calls them to suitable duties (Heb 10:19 to the end).