Christ, in our place, lived the law perfectly totally without sin, through him we have and will be sinless before the law. The punishment for those crimes that we deserve before the law, he received, his death, was ours. All the demands of the law are totally fulfilled. In his death, we are dead to the law, it can have no further authority over us. The law still exists, it is forever, and those who put themselves under it, rejecting Christ's substitute live and death, must attempt to follow it, and receive it's punishments. For the Christian, there is a new law, as Paul said, "he who loves his neighbor has fulfilled the law " To paraphrase Martin Luther, " in Christ, it is as if I lived his life, breathed his breath, lived his life, suffered his pain, experienced his crucifixion, died his death, and was raised with him from the dead".