The domain of the Spirit of God is the truth.
The domain of the spirit of the world includes everything that is not the truth. His method of gaining his end is deception. He is the one who "deceiveth the whole world [habitable earths" (Rev. 12:9).
The world itself is a gigantic and complicated
deception... whose promises are not fulfilled,
whose honors quickly fade, whose prizes are cheap,
whose pleasures do not satisfy,
whose riches corrupt,
whose praises are insincere...
in which, in a word, the real value of everything is disguised and misrepresented.