When Moses were leading the Israelites out of Egypt, the Lord was guiding them. Eventually Moses and the Israelites came to the shore of the Red Sea. At the same time, the Egyptian Pharaoh decided to send his army to chase his escaped slaves. What would these poor Israelites do?

But God provided His people with an amazing way to escape. He told them to set up camp and then told Moses to raise his staff and stretch his hands out over the waters of the Red Sea. Suddenly, the sea parted and there was dry ground in front of Moses and his people. Moses led the people through the middle of the Red Sea safely to the other side. Then, by the will of God, the waters came back together, letting the Egyptian soldiers, who continued to pursue the Israelites, drown.

Those people had to trust God completely to save them. That was one of His greatest and endless miracles.

More Info: en.wikipedia.org