'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.

Because you are still in the flesh: for when there is envy and division among you, are you not still walking after the way of the flesh, even as natural men?

For when one says, I am of Paul; and another says, I am of Apollos; are you not talking like natural men?

and all [of them] drank the same spiritual drink, for they were drinking from a spiritual rock which followed them; and the rock was Christ.

Does it not seem natural to you that if a man has long hair, it is a cause of shame to him?

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.