(to exit: re-click see above) ...Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual. (1co 2:13)
...But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know [them], because they are spiritually discerned. (1co 2:14)
...Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand. (mat 13:13)
...And in them is fulfilled the prophecy of Esaias, which saith, By hearing ye shall hear, and shall not understand; and seeing ye shall see, and shall not perceive: (mat 13:14)
...For this people's heart is waxed gross, and [their] ears are dull of hearing, and their eyes they have closed; lest at any time they should see with [their] eyes and hear with [their] ears, and should understand with [their] heart, and should be converted, and I should heal them. (mat 13:15)