1 Corinthians 3:1-4

For my part, brothers and sisters, I was not able to speak to you as spiritual people but as people of the flesh, as babies in Christ. I gave you milk to drink, not solid food, since you were not yet ready for it. In fact, you are still not ready, because you are still worldly. For since there is envy and strife among you, are you not worldly and behaving like mere humans? For whenever someone says, “I belong to Paul,” and another, “I belong to Apollos,” are you not acting like mere humans?