This guy knows what's up.

There was a time when "sin" (and, by means of sin, Satan) used the commandments ("thou shalt" or the prohibitions ("thou shalt not") as pretexts in order to give rise to desire in us, and along with desire, to sin (see Rom 7:7ff.). Now, after the advent of the grace of Christ, he is no longer able to use this pretext because God does not tell us what to do or not to do, but actually enters into doing or the refraining from doing with us. - Raniero Cantalamessa