Friends who are replying, my intent is not to stir up debate between Christians or about religion. The Books mentioned are relevant to this topic. They are good reading for anyone interested. Based on the down votes it seems HN would rather not include them while discussing this topic; which is all the more reason to go read them for yourself. They remain significant in our modern culture, e.g., music, books, movies and the lives of billions of people (worldwide.) While 1984 and many other dystopian novels are good for thought experiments...
These Books are relevant both historically and today.