Rom 8:3 For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
Rom 8:4 That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.
The Law of Moses was not able to redeem us; it simply served to show us how fallen our state was and how incapable we were of attaining right standing with God, in our own power. When Christ resurrected a new order came in which was the law of the Spirit of Life. We are not led by inscriptions on stone tablets anymore. We are led by the Spirit of the Living God.