HELP!!!

I am looking for a book, a classic novel, with the theme of forgiveness. I know should be able to come up with a few off the top of my head, but for some reason I cannot. Please give me suggestions, this is for a review I need to write for a parish newsletter, read by about 200 families and our Pastor. We are trying to not just discuss books that are exclusively religious, but classics that are good moral examples. I'll also take suggestions for book lists.