God never planned to hold our sins against us. However, humanity needed to learn that the removal of our sins could not be accomplished by our efforts. We needed reminders that we were created to depend on Him. The sacrifice of bulls and goats under the old covenant were designed to teach that lesson.
The priest under the Mosaic Law had to stand “…daily at his service, offering repeatedly the same sacrifices, which can never take away sins (Hebrews 10:11).” “It is impossible for the blood of bulls and goats to take away sins (Hebrews 10:4).” They could not make the people perfect (10:2). They could not perfect the conscience of the worshiper (9:9). The sacrifices of the bulls and goats reminded the people of their sins instead of removing them (10:3). These sacrifices were never designed to remove the sins of the past, present or future. They did not remove, but reminded people of, sin. Our efforts could never remove our sin!
Jesus’ sacrifice was not designed to be offered daily or annually. Jesus was offered once, and His effects were designed to remove the guilt of sin in the past, present and future! The past: “…a death has occurred that redeems them from the transgressions committed under the first covenant (9:15).” The present: “For Christ has entered…to appear in the presence of God on our behalf (9:24); …he has appeared once for all at the end of the ages to put away sin by the sacrifice of himself (9:26). The future: “…we have been sanctified through the offering of the body of Jesus Christ once for all (10:10); For by a single offering he has perfected for all time those who are being sanctified (10:14).”
Animal sacrifices were designed to be offered repeatedly. They could not sanctify or perfect humanity. Jesus’ sacrifice was designed to remove sin (9:28). It was never designed to be offered repeatedly to remove sin, but once for all. Otherwise, Jesus would have had to be offered daily from the beginning of human history (9:25). Jesus’ offering was effective for our past, present and future sins. His work as sacrifice is done. “When Christ had offered for all time a single sacrifice for sins, He sat down at the right hand of God (10:12).” Therefore, “…by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast (Ephesians 2:8-9).”