This Sunday our text leads us into the specific ministry of Jesus as our High Priest bringing in a new covenant for our relationship with God. The old covenant is the law, most well-known in the Ten Commandments.
The old covenant is base on a mutual agreement of man's obedience and God's fulfillment of His promises once the obedience is completed. The new covenant is based completely on the work of Jesus in perfectly satisfying the full requirements of the law of God.
Our sins are removed and we find that the law is no longer a requirement without but a desire put within the heart by God Himself. This is good news!