The New Testament's 'Demon Brain'

Jacob calls this egotistical tribal mentality, an attitude, and i quote, unspiritual. The greek word he uses always has a deeply perjorative connotation in the new testament. It refers to this wholly unsophisticated, kind of primal, cave dwelling, godless, lowly, self gratifying human reasoning. And if that isn't enough, he does one better by just calling the whole thing demonic.