Do not think that I have come to abolish the Law or the Prophets; I did not come to abolish, but to fulfill . . . until the heaven and the earth shall pass away, one jot or one tittle shall in no way pass from the Law . . . (Matthew 5)
Jesus did fulfill (complete) the law, in our place, because we could never do that. Now that the requirements of the law have been fully meant (satisfied) in Jesus, we are fully restored to the position previously held by Adam before the first sin. FULLY RESTORED! Why would the Son of God come for less!