What does the Bible say about Jesus Christ being the brightness of God's glory?

In Hebrews 1:3, it is explicitly stated that Jesus is 'the brightness of his glory and the express image of his person.' This indicates that Jesus does not merely reflect God's glory, but is, in essence, God's glory manifest. He is the incarnate God, having always existed as such even before the world was created. The eternal nature of Jesus means that His divine characteristics, power, and offices reflect the full majesty of God. Thus, recognizing Jesus as the brightness of God's glory is crucial for understanding His divine nature and the salvation He offers.