The words we speak to those who have grown in the faith are wise. Our words are different from the words of the wise people or rulers of this world. People like that aren't going anywhere.
We have not received the spirit of the world. We have received the Spirit who is from God. The Spirit helps us understand what God has freely given us.
That is what we speak about. We don't use words taught to us by people. We use words taught to us by the Holy Spirit. We use the words of the Spirit to teach the truths of the Spirit.
Some people don't have the Holy Spirit. They don't accept the things that come from the Spirit of God. Things like that are foolish to them. They can't understand them. In fact, such things can't be understood without the Spirit's help.