There are times when you are in a place where there is nothing you can do about the situation you are in. The only thing you can do is rely upon God for what you need. This was the case with the Israelites. Pharaoh and his army went after the Israelites to bring them back to Egypt. The Israelites were in no position to fight the Egyptian army. With the Egyptians on one side and the Red Sea on the other, the Israelites were trapped in what seemed to be an impossible situation. You know how the story ended; God opened the Red sea and defeated the Egyptian army and rescued His people.
He will do the same for you! Only be still, the LORD will fight the battle for you! Exodus 14:14