Exodus 14:5-9

When the king of Egypt was told that the people were gone, he and his servants changed their minds. They said, “What have we done, letting Israel, our slave labor, go free?” So he had his chariots harnessed up and got his army together. He took six hundred of his best chariots, with the rest of the Egyptian chariots and their drivers coming along. GOD made Pharaoh king of Egypt stubborn, determined to chase the Israelites as they walked out on him without even looking back. The Egyptians gave chase and caught up with them where they had made camp by the sea—all Pharaoh’s horse-drawn chariots and their riders, all his foot soldiers there at Pi Hahiroth opposite Baal Zephon.