After the Jews fled Egypt, Pharaoh changed his mind about letting them go. He and his army pursued them, until they were trapped between the army and the Red Sea. The people were terrified and Moses cried out to G-d, and G-d replied, “Why are you crying out to Me in prayer? Speak to the Jewish people and tell them to travel!” (Shemot 14:15). G-d then instructed Moses to stretch out his hand over the water to initiate the splitting of the sea.
We are supposed to cry out to G-d for help in times of trouble. What might have been the problem with their crying out to Him at that time?
The splitting the Red Sea was an unparalleled deviation from the laws of “nature,” and so obviously the Hand of G-d. What value, then, was added by Moses stretching out his hand to initiate the splitting of the sea?