kjv@Exodus:14:20@ And it came between the camp of the Egyptians and the camp of Israel; and it was a cloud and darkness to them, but it gave light by night to these: so that the one came not near the other all the night.
There are a number of secular (even some theological) scholars that have gone to great lengths to explain how the parting of the sea may have happened in natural terms. None of these go to explain the prerequisite element of the Angel of the Lord and Pillar of Fire keeping the Egyptians at distance from the Israelites as they prepared to cross the dry land. If you are going to explain one thing by natural terms, you must be able to explain them all.
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