Many religions, and aside from that, also have theories of forgiveness that are comparable to christianity. To me, does your theory of forgiveness make any sense without your religious world view to ground it in? I don't no, that's a really kind of shattering proposition. The things that i believe as a result of being a christian are the most true things to me. Those are the things i believe the very most, the foundational principles upon which everything else is built.