Isaiah 27:1

27:1 In that day Yahweh with his hard and great and strong sword will punish leviathan the swift serpent, and leviathan the crooked serpent; and he will kill the monster that is in the sea.
-World English Bible

Other Translation

27:1 In that day the LORD with his sore and great and strong sword shall punish leviathan the piercing serpent, even leviathan that crooked serpent; and he shall slay the dragon that [is] in the sea.
-King James Version