Exodus 14:5-7

When word reached the king of Egypt that the Israelites had fled, Pharaoh and his officials changed their minds. “What have we done, letting all those Israelite slaves get away?” they asked. So Pharaoh harnessed his chariot and called up his troops. He took with him 600 of Egypt’s best chariots, along with the rest of the chariots of Egypt, each with its commander.