Leviathan is spoken of in Job 41, as a dragon, or serpent, "King of the sons of pride", representing the adversary within individually, as well as the adversary in mankind generally.
In Isaiah, as well as in Revelations Jesus has a sharp sword coming out of His mouth, the Hebrews 4 12 sword "for all things are opened to the eyes of Him with whom we have to do". As well as the sword out of the mouth thing, Jesus' eyes are as flames of fire.
IMO, All of this speaks of exposing secret attitudes of pride and lust and deceit, the ways of man are the ways of the serpent in the garden, "Did God really say you cannot eat it? Or was He just pullin your leg to keep you from knowing everything like He does? Waall Pardna, You bet He said it, with a living and active word that divides asunder soul and spirit, He said it - An He's gonna keep sayin it till every single soul that ever lived knows it ;o)