What does Hebrews 10 teach about the purpose of sacrifices?

In Hebrews 10, it is made clear that the sacrifices of the Old Covenant were not sufficient to take away sins; rather, they served to highlight the need for a more profound provision. The law required these sacrifices, but they were ultimately types that indicated the necessity of Christ’s atoning work. As stated in verse 4, it is not possible for the blood of bulls and goats to take away sins. Instead, these sacrifices pointed toward the ultimate sacrifice of Christ, who fully atones for all sin and establishes the new covenant through His blood, thus fulfilling the law's requirement once and for all.