Who Is Leviathan

Isaiah 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.

Job 41:1

Canst thou draw out leviathan with an hook? or his tongue with a cord which thou lettest down?

Job 3:8

Let them curse it that curse the day, who are ready to raise up their mourning.

Psalms 104:26

There go the ships: there is that leviathan, whom thou hast made to play therein.

Psalms 74:14

Thou brakest the heads of leviathan in pieces, and gavest him to be meat to the people inhabiting the wilderness.