“I have set you as a light to the Gentiles, that you should be for salvation to the ends of the earth” – Acts 13:47
Jesus is the Light of the world. He called us out of darkness into His marvelous light! Those who follow Him will never walk in darkness, but will have the Light of life (John 8:12).
As the moon absorbs the light from the sun and reflects it, we who have experienced the marvelous light of God should reflect His light. The only reason why a believer in Christ is not immediately called to heaven as soon as he/she is saved, is to reflect the light of God through their lives to the people who are still living in darkness. We are commanded by Jesus to go into all the world and preach the gospel to all creation (Mark 16:15). God's mission is not complete until his Gospel has gone to the ends of the earth.
“May we be a shining light to the nations, a shining light to the peoples of the earth, till the whole world sees the Glory of Your Name…” – Hymn by Chris Christenson