'Natural' in the Bible

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.

It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body.

Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.