What does the Bible say about the Lamb being the light?

In Revelation 21:23, we see that 'the city had no need of the sun, neither of the moon to shine in it; for the glory of God did lighten it, and the Lamb is the light thereof.' This profound truth emphasizes that Christ, as the Lamb, embodies the very light of God. It is through Him that believers receive spiritual illumination and life, making His presence essential. Furthermore, His glory does not just illuminate the city; it transforms His people, who will shine forth as the sun, reflecting His light and glory eternally.