If you read Exodus 15 carefully, it describes a storm at sea. This is the old Yahwistic source. In the retelling of the story in the later Priestly source, it is more miraculous: The water stands up on either side like a wall. There are walls of water standing up. As you move back in time, oddly enough, the story becomes more historical.
Elie WieselIn the beginning was belief, foolish belief, and faith, empty faith, and illusion, the terrible illusion. ... We believed in God, had faith in man, and lived with the illusion that in each one of us is a sacred spark from the fire of the shekinah, that each one carried in his eyes and in his soul the sign of God. This was the sourceโif not the causeโof all our misfortune.
Elie Wiesel