I believe marriage is one of those secret mysteries hidden in Christ. To hear the secrets of God you have to come close to Him and enter into His secret place. To really know your wife or your husband you have to have an opportunity to enter into those intimate places to see and hear all of the mysteries and secrets that has affected their life both good and bad.
God uses the marriage institution as the foundation of teaching us to love the people around us, our communities, our friends, our neighbors, more importantly, how to love Him. To know your spouse God gives us early in our relationship with Him a revelation concerning the relationship He has with His Son. There is a union with God, a fellowship of three, such as is with our marriage relationship, it is husband, wife and God. God’s union is love and for us to reflect His union we have to love ourselves, our spouse, and God as one, mystery! To reflect a oneness that is so intertwined that nothing can separate it.
The institution of marriage reflects the commitment God has with His people. His covenant with us is mirrored in the marriage relationship. God has made commitments to His People, we have made commitments to our spouses, God promises to never leave us or forsake us. We must have this same commitment with one another. Our blessings lie within being obedient to His covenant. We are to honor each other before God the way we were instructed to by His desire for us to become one, the true sweet secret mystery.