Job
Job 41:1  Canst thou draw out leviathan with an hook? or his tongue with a cord which thou lettest down?

Psalms
Psa 74:14  Thou brakest the heads of leviathan in pieces, and gavest him to be meat to the people inhabiting the wilderness.
Psa 104:26  There go the ships: there is that leviathan, whom thou hast made to play therein.

Isaiah
Is 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.