1 Corinthians 2:13-15

Lamsa(i) 13 For the things which we discuss are not dependent on the knowledge of words and manÆs wisdom, but on the teaching of the Spirit; thus explaining spiritual things to the spiritually minded. 14 For the material man rejects spiritual things, for they are foolishness to him: neither can he know them, because they are spiritually discerned. 15 But the spiritual man discerns every thing, and yet no man can discern him.