Just set free from their Egyptian master by plagues of insects and a river of hemoglobin, the Israelites stood on the shore of the Red Sea quivering. "Was it because there were no graves in Egypt that you brought us to the desert to die," they griped bitterly to Moses. The people, barely out of chains, had already forgotten their miraculous deliverance from slavery and had fallen back into the common reaction of fear. But God had a solution for the...