What does the Bible say about the marriage union between Christ and the church?

In Ephesians 5:25-33, the Apostle Paul speaks of a great mystery regarding the marriage union, comparing it to the relationship between Christ and the church. This union is not merely a physical one, as seen in the marriage of Adam and Eve, but a spiritual union where every believer is considered part of the body of Christ. This union signifies that just as a husband loves his wife, Christ loves the church and gave Himself for it, sanctifying and cleansing it for Himself. Thus, the marriage union serves as a vivid representation of the love and bond between Christ and His elect.