This book is a fairly detailed investigation of the evidence for Christianity, but also serves to illustrate the same points for any religion. Kennedy was always told to believe in god and to accept the bible as truth, but nobody could satisfy his need for proper evidence that what is written in the bible is fact. The message is that there seems to be less and less need for religion, and that as more and more becomes known about the world this trend will continue. Also, while one can say that there is no proof that any god exists it is similarly impossible to prove that any god doesn't exist. So there is a need for tolerance. If like me you have no need for any religion then you shouldn't be forced to accept any. By the same token athiests or agnostics should be completely happy to let believers continue to believe if that serves a purpose for them. It is an interesting work, and if you ever need to get into arguments about the merits of religion it will give you plenty of information.