1 Corinthians 3:1-4, 18-20

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?

Do not deceive yourselves. If any of you think you are wise by the standards of this age, you should become “fools” so that you may become wise. For the wisdom of this world is foolishness in God’s sight. As it is written: “He catches the wise in their craftiness”; and again, “The Lord knows that the thoughts of the wise are futile.”