The way he goes through these stories is very methodical and with care. He doesn't try to refute the stories, just tries to offer up some sort of explanation for the events. While one might think it may take away from the miracles of the Bible, one must always remember that the Miracle is still there even if it can be explained by nature. How did Moses know when to take the Hebrew people out of Egypt when he did allowing for their survival, but not for the Egyptians? How did Lot know when to leave Sodom so that he did not get burned up in fire and brimstone? It makes sense that God would use natural phenomenon, his miraculous creation, to cause these miraculous events.
