Leviathan

     A Leviathan is a sea monster referenced in the Old Testament. "In Psalm 74 God is said to "break the heads of Leviathan in pieces" before giving his flesh to the people of the wilderness; in Psalm 104 God is praised for having made all things, including Leviathan; and in Isaiah 27:1 he is called the 'wriggling serpent' who will be killed at the end of time". The image of a Leviathan is used as an image for Satan. The Leviathan endangers both God's creatures and God's creation. St. Thomas Aquinas described the Leviathan as a demon of envy.