Last week, in 1 Corinthians 1–2, we saw that God’s wisdom is not the wisdom of this world.It is revealed in the cross—foolish to human pride, but the very power of salvation. Now, in chapters 3–4, the apostle Paul the Apostle turns from what the church believes to how the church lives. And his diagnosis is direct: You believe the gospel—but you are still thinking like the world.