What does the Bible say about the Church's beauty?

The Church, referred to as the spouse of Christ, is portrayed as beautiful in Song of Solomon 6:10, where it says, 'Who is she that looketh forth as the morning, fair as the moon, clear as the sun, and terrible as an army with banners?' This beauty is derived from her union with Christ, who delights in her purity and righteousness that is bestowed upon her through His sacrifice. The Church is not beautiful in and of herself, but finds her beauty in the righteousness of Christ, which clothes her forever. This relationship underscores the transformative love and grace that Christ extends to His people, making them precious and valuable in His eyes.