Carnality and Immaturity in the Church

1 Corinthians 3:1-4

And I, brethren, could not speak to you as unto spiritual, but as unto carnal. As unto little ones in Christ.

I gave you milk to drink, not meat: for you were not able as yet. But neither indeed are you now able: for you are yet carnal.

For, whereas there is among you envying and contention, are you not carnal and walk you not according to man?

For while one saith: I indeed am of Paul: and another: I am of Apollo: are you not men? What then is Apollo and what is Paul?