Leviathan

• Originally cited as a "great sea monster" in the first chapter of Genesis, the leviathan has become synonymous with any large monster or creature. According to legend, the Leviathan was a fire-breathing creature of such immense size that the sea boils when it swims on the surface. It ruthlessly and fearlessly rules over all the creatures of the sea. The Leviathan's skin is like a double coat of mail, with overlapping scales as large as shields on its back, and as sharp and hard as broken pottery on its under-parts.Swords and harpoons will simply bounce off such protection. It breathes smoke from its nostrils and flames from its mouth which is rimmed with teeth. Its fins radiate a brilliant light and its eyes are like the glimmerings of dawn.Hebrew Livyatan (means approximately 'that which gathers itself into folds' or 'that which is drawn out'), in Jewish mythology, is a primordial sea serpent. Its source is in pre-biblical Mesopotamian myth, especially that of the sea monster in the Ugaritic myth of Baal. In the Old Testament, Leviathan appears in Psalms 74:14 as a multi-headed sea serpent that is killed by God and given as food to the Hebrews in the wilderness.
  There were originally two leviathans created. The myth says that God realized that if Leviathan and his mate would procreate they would devour the world. Therefore, God killed the female and freezing the meat (salted in some theories) for the righteous in the world to come and then fashioned garments out of the skin for Adam & Eve, also known as "garments of light". The male was spayed and left alive.
  The Leviathan is one of the three creatures which will be served at the banquet feast at the end of time. Afterwards, its skin is to be stretched as a canopy from the walls of Jerusalem to illuminate the world.