The "gospels" are men's writings...so any "revelation" is by and through "tainted" "men". If you want anyone to understand your perception of "spirit" you will have to explain(explicitly) your "perception" of "spirit". I, for one, see it as an obfuscation of a person's perception of a belief based in unreality....one which is used by the perpetrator for the very reason of not having to explain the absurdity of such an unrealistic belief.SORRY
GOD SPEAKS TO US through the Gospels and,THROUGH THE SPIRIT
I am simply explaining my observation here.