Exodus 14:6-10

So he made his chariot ready and took his people with him; and he took six hundred select chariots, and all the other chariots of Egypt with officers over all of them. The LORD hardened the heart of Pharaoh, king of Egypt, and he chased after the sons of Israel as the sons of Israel were going out boldly. Then the Egyptians chased after them with all the horses and chariots of Pharaoh, his horsemen and his army, and they overtook them camping by the sea, beside Pi-hahiroth, in front of Baal-zephon. As Pharaoh drew near, the sons of Israel looked, and behold, the Egyptians were marching after them, and they became very frightened; so the sons of Israel cried out to the LORD.