Cross reference
Job 41:1
1 "Can you draw out Leviathan{Leviathan is a name for a crocodile or similar creature.} with a fishhook? Or press down his tongue with a cord?
Psalms 74:14
14 You broke the heads of Leviathan in pieces. You gave him as food to people and desert creatures.
Job 3:8
8 Let them curse it who curse the day, Who are ready to rouse up leviathan.
Psalms 104:26
26 There the ships go, And leviathan, whom you formed to play there.
Isaiah 27:1
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.