Hebrews 1:3 – The Son is the radiance of God’s glory and the exact representation of His being, sustaining all things by His powerful Word. After He had provided purification for sins, He sat down at the right hand of the majesty in heaven.
Jesus said, “If you have seen me you have seen the Father.” In this passage we see Jesus described as “the radiance of God’s glory and the exact representation of His being.” Think about that: we were created in the image of God, but Jesus is God. You look at Jesus and you see God. They are unified to the point of being one and the same. They are all powerful, and sustain all things by their Word.
Jesus represents God here on earth. Without Him we would have nothing. He sustains everything by His Word and through Him we receive purification from sin. All the sins of the world, both past and present, were placed on His shoulders and He went to the grave. When resurrected the sin was gone and Jesus sat down at the right hand of God.
Now that Jesus is in heaven His earthly role falls to us. I’m not talking about purification for sin, that’s already been taken care of. I am talking about reflecting God’s glory. Ephesians tells us we are to “be imitators of God.” Now we cannot be an exact representation as Jesus was, but through Jesus we can still represent Him. We must strive to imitate God and reflect His glory in all that we do.
So if Jesus, the Son, is the radiance of God’s glory, we must be like the 'moon' and reflect the glory of the Son.