A whole book about the current significance of one bible passage: Matthew 13:12: "for whosoever hath, to him shall be given, and he shall have more abundance: but whosoever hath not, from him shall be taken away even that he hath."
You would expect this to be religious in tone, but it is in fact, a sociological tome. An interesting one at that! It basically explores all the ways the rich get richer and the poor get poorer. Quick and easy to read, definitely not a dry textbook type of book.
I found it a little discouraging. Most of it talks about how any advantage or disadvantage you were born with tends to bring on more advantages or disadvantages, as the case may be.....