12 For we have received the Spirit from God, not the spirit of this world, so that we could understand what God so generously gave us. 13 That’s what we speak about—not using words taught by human wisdom, but what the Spirit teaches. We explain what is spiritual using spiritual terms. 14 Of course people who are not spiritual don’t accept what comes from God’s Spirit. It’s just foolish nonsense to them, and they can’t understand it, because what is spiritual has to be properly examined.