Exodus 14:15-17

15Then the LORD said to Moses, “Why are you crying out to me? Tell the Israelites to move on. 16Raise your staff and stretch out your hand over the sea to divide the water so that the Israelites can go through the sea on dry ground. 17I will harden the hearts of the Egyptians so that they will go in after them. And I will gain glory through Pharaoh and all his army, through his chariots and his horsemen.