1 Corinthians 3:1-4

Brothers and sisters, I could not address you as people who live by the Spirit but as people who are still worldly—mere infants in Christ. I gave you milk, not solid food, for you were not yet ready for it. Indeed, you are still not ready. You are still worldly. For since there is jealousy and quarreling among you, are you not worldly? Are you not acting like mere humans? For when one says, “I follow Paul,” and another, “I follow Apollos,” are you not mere human beings?