If there is heaven, there is also he11. If there is forgiveness, there is also judgment. They believe in free will. The story of Moses is the oral history of the Israelites. It was a long time ago.
Some literary forms demand miraculous occurences.
They were passed down from generation to generation carefully, with veneration, and influenced by a myriad of people, places, and events. If the sea parted, it parted. My position is one of confidence. I see no reason, no logic, in believing in an entity beyond my comprehension, assuming of course this god entity exists. If such does exist, I'm aware that I am incapable of interpreting its essence and therefore refuse, confidently refuse, to lean upon my speculations as if these encompassed a tangible crutch, an excuse.