In removing the Aaronic priesthood of Moses, God ushered in a better covenant by a priesthood which would continue forever - Christ Jesus was ordained a priest after the order of Melchizedek. Under this new covenant, sins could be totally removed (forgiven) because the sacrifice was none other than Jesus Himself, the Lamb of God. Disciples of Jesus are privileged to serve as priests although they are not involved with sacrifices for sin. They offer up spiritual sacrifices of praise and good works to God.
