The one-flesh marital union is a signpost pointing to our relationship with Christ as our bridegroom. Once we reach the destination, however, the signpost becomes unnecessary. That one marriage—our marriage to Christ—will be so completely satisfying that even the most wonderful earthly marriage couldn’t be as fulfilling. Earthly marriage is a shadow, a copy, an echo, of the true and ultimate marriage. Once that ultimate marriage begins, at the Lamb’s wedding feast, all the human marriages that pointed to it will have served their noble purpose and will be assimilated into the one great marriage they foreshadowed. The purpose of marriage is not to replace Heaven, but to prepare us for it.
~ Randy Alcorn, 50 Days of Heaven