This came up yesterday in class: Romans 4:25 says that Jesus was “raised for our justification” and 1 Corinthians 15:17 says that if Jesus is not raised then we are still in our sins. Paul seems to have more in mind here than the resurrection merely provides proof that Jesus is God or that his atonement on the cross took. Somehow the resurrection has legal implications: it is essential for our being declared righteous before God (yes, I don’t think the New Perspective has proved its case against the traditional Reformed understanding of justification).
I have thoughts on this, but before I share them, I wondered what you think. In what sense is the resurrection as important as the cross for our justification? I think that we usually say that the cross took care of our sin problem and the resurrection defeated death. So what does Paul mean when he says that the resurrection defeats sin?