We do not live now by the oldness of the letter of the law but in the newness of the sin. Sin is transgression of the law - which is why we have died to the law and sin because we died with Christ. We live now from our new creation in Christ. We have nothing to do with the law of Moses anymore. We have the fulfillment of the law - Christ Himself - he is our true life now.
opps...the part in brown above is supposed to say "We do not live now by the oldness of the letter of the law but in the newness of the spirit".
Newness of sin just doesn't cut it...lol
Romans 5:20 (NASB)
[SUP]20 [/SUP] The Law came in so that the transgression would increase; but where sin increased, grace abounded all the more,
The Law did it's job and brought us to Christ. As we have received Christ - that is how we are to walk - by grace through faith in His work alone.