Commentaries:
God blesses marriage in the first chapter of Genesis, and it is interesting that as the Book nears its end, in Revelation 19, marriage and His blessing on it once again take center stage. Clearly, the institution of marriage has a far higher purpose than just the physical union of a man and a woman.
Here we have a prophetic portrayal of the ultimate marriage, and God's blessing goes out to those who comprise the wife—the bride—of Jesus Christ. This blessing in Revelation 19:9 gives the blessing in Genesis 1:28 its true context. Our human marriages are types of this greater spiritual marriage. The experiences that we go through during a blessed physical marriage are designed by God to prepare us for our part in the ultimate intimate relationship with our Savior.
Marriage is a representation on the human plane of union between God and man. A similar intimacy exists in both relationships. Just as the sexual bond between a man and woman makes them "one flesh" (Genesis 2:24; see I Corinthians 6:16), a close, spiritual unity between God and a converted human being—which Jesus says is "to know" God in John 17:3 (compare this term to the sexual imagery of Genesis 4:1)—makes them "one spirit." On this, the apostle Paul writes in I Corinthians 6:17, "But he who is joined to the Lord is one spirit with Him" (see also Ephesians 4:4). Physical marriage, then, can teach us how to be spiritually one with God.
Just as surely as God will bless the union between His Son and the Bride, He will also endue the physical type with the ability to fulfill its purpose—that is, to create unity between marriage partners to prepare them for union with God.
Richard T. Ritenbaugh
Marriage—A God-Plane Relationship (Part Three)