Where you came from has everything to do with who you are. We've gotten this backwards. We think we came from one place (sin for example) but we spend our whole lives trying to change who we are into something we intrinsically are not (children of God). But that's not how identity works. It's not a sum of what you've done; it's a reality of where you came from. That means works can't change, positively or negatively, who you intrinsically are which is good.