There is an underlying assumption that the thread did fall into, that humans 'work to be saved'. i.e., you have to do something. You cannot, because there is nothing you can do that can undo all of the sin you commit.
You know what's weird about this? We forgive each other and accept each others' forgiveness all the time. But we do this know that humans are fallible. The hiccup occurs because we cannot figure out why God made us fallible. God forgiving us, and us accepting the forgiveness feels discordant. I draw a circle on the paper, notice it's imperfect and forgive the circle for being imperfect. And it stews in guilt for failing to be a circle, despite the fact that I drew it.
An alternative, and it solves the puzzle, is that all creations are actually perfect. They just haven't realized it yet. "Forgiveness" is just that eureka moment.
It doesn't make for a very nice world, though, where people think that everyone else is divinely perfect. Makes it hard to punch Nazis.
The last alternative is that there is no paradox and that one of the foundations assumed is incorrect. "The universe DGAF" worse, too. Life's a bench and then you're forked.
