Why is the relationship between Christ and the Church compared to marriage?

The Bible uses marriage as a metaphor to explain the relationship between Christ and the Church because it signifies a deep and abiding connection. Just as a husband and wife are to be one flesh (Ephesians 5:31), Christ and His Church are united in a spiritual sense, as depicted in Revelation 21 where the Church is referred to as the 'Lamb's wife.' This imagery reinforces the idea of commitment, sacrificial love, and a devotion that transcends typical human understanding, thus providing a framework for believers to understand their position in Christ.