John Piper has an upcoming book on marriage that is based on a sermon series he did last year at Bethlehem Baptist Church. Based on what I’ve heard of those messages, it should be excellent. In one of his messages, Piper talks of the wonder of marriage:

Marriage is more wonderful than anyone on earth knows. And the reasons it is wonderful can only be learned from God’s special revelation and can only be cherished by the work of the Holy Spirit to enable us to behold and embrace the wonder. The reason we need the Spirit’s help is that the wonder of marriage is woven into the wonder of the gospel of the cross of Christ, and the message of the cross is foolishness to the natural man, and so the meaning of marriage is foolishness to the natural man (1 Corinthians 2:14).

And because of that thinking, we are confused about what is intended by marriage. He explains in the following excerpt from that message: