Lucifer's Deception about himself

For our struggle is not against flesh and blood [contending only with physical opponents], but against the rulers, against the powers, against the world forces of this [present] darkness, against the spiritual forces of wickedness in the heavenly (supernatural) places. 

Ephesians 6:12 AMP

"None are in greater danger from the influence of evil spirits than

those who, notwithstanding the direct and ample testimony of the Scriptures, deny the existence and agency of the devil and his angels....as we approach the close of time, when Satan is to work with greatest power to deceive and destroy, he spreads everywhere the belief that he does not exist. 

He is well pleased to be painted as a ludicrous or loathsome object, misshapen, half animal and half human." 

E.G.W.