If you clicked on the link I gave you would have read the following...
The word “natural” means
soulish. We get our word “psychology” from this word. The” natural man” is all soul, pure psychology,
and no spirit. He has natural capacity but no spiritual capacity (
psuchikos). He does not have the capacity to relate to God because he has had only one birth; he has not had a second birth. He may outwardly be very moral or righteous, but inwardly he is dead to God. He is no more than a soul and without spiritual capacity. He cannot connect to God.
I offer you the following to find out what good sound exegetical teaching may do for your spiritual edification.
Such teaching is rare to find today....
https://www.rbthieme.org/index.html#tabs-3
grace and peace .....................