Spirit filled life

1 Corinthians 2:14

But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them,

1 Corinthians 2:15

But he who is spiritual appraises all things, yet he himself is appraised by no one.

1 Corinthians 3:1-3

And I, brethren, could not speak to you as to spiritual men, but as to men of flesh, as to infants in Christ.2I gave you milk to drink, not solid food; for you were not yet able to receive it. Indeed, even now you are not yet able,3for you are still fleshly. For since there is jealousy and strife among you, are you not fleshly, and are you not walking like mere men?