Hebrews 10:1-10

¹ “For the Law, since it has only a shadow of the good things to come and not the form of those things itself, can never, by the same sacrifices which they offer continually every year, make those who approach perfect. ² Otherwise, would they not have ceased to be offered, because the worshipers, having once been cleansed, would no longer have had consciousness of sins? ³ But in those sacrifices there is a reminder of sins every year. ⁴ For it is impossible for the blood of bulls and goats to take away sins. ⁵ Therefore, when He comes into the world, He says,

‘You have not desired sacrifice and offering,
But You have prepared a body for Me;
⁶ You have not taken pleasure in whole burnt offerings and offerings for sin.
⁷ Then I said, ‘Behold, I have come
(It is written of Me in the scroll of the book)
To do Your will, O God.’

After saying above, ‘Sacrifices and offerings and whole burnt offerings and offerings for sin You have not desired, nor have You taken pleasure in them’ (which are offered according to the Law),⁹ then He said, ‘Behold, I have come to do Your will.’ He takes away the first in order to establish the second. ¹⁰ By this will, we have been sanctified through the offering of the body of Jesus Christ once for all time.’”

Make perfect those who approach perfect: The Old Covenant law never truly removed sin. The Israelites would go to the tent of meeting, and later the temple, and offer animal sacrifice. After this, there was some initial relief because the blood of bulls and goats brought a temporary covering of forgiveness. But these sacrifices never perfected the Israelites because the blood of bulls and goats can never take away sin. It cannot perfect anyone if it could, then the sacrifices would have ceased to be offered because the people would no longer feel guilty for sin. Therefore, this old system is made null and void by the New Covenant which does perfect all who believe in Jesus (Hebrews 10:14). The law was only a shadow. The reality, which is Jesus, cleanses believers so perfectly that they no longer have consciousness of sins. 

Impossible for the blood of bulls and goats: The Old Covenant practices never removed sins. Furthermore, they actually made the Israelites more conscious of their sins. The Old Covenant was a dead end as it could never save. It only acted to remind people of their sins. 

You have not desired sacrifice and offering: God was never truly about the Old Covenant sacrifices. He was simply using these as an instrument to prepare the Israelites for the final sacrifice of Jesus.

To do your will: In the original language covenant, testament, and will come from the same word. The author plays on this concept here. Christ came to do God’s will by taking away the first covenant. God’s will is that the first covenant be removed so that something better may be established: The New Covenant. By this new will believers have been sanctified once and for all. Believers are not only forgiven but they are sanctified past-tense. The believer’s sanctification is not progressive: It is accomplished completely in Christ. This does not mean that we do not sin. It means that our identity is completely sanctified.