There was a man sent from God, whose name was John.  The same came for a witness of the Light, that all men through him might believe.  John 1:6-7
These verses from the prologue of John’s Gospel contain one of the more meaningful names of God the Son in the entire New Testament.  Jesus was the Light whom God sent into a world that was stumbling around in the darkness of sin.
This name of Jesus is also used for God the Father because God is the Creator of light.  The earth was shrouded in darkness until He declared, “Let there be light” (Genesis 1:3), and light appeared to illuminate the earth.
Light is something we take for granted until it disappears.  Most of us know what it’s like to grope around in a dark house after the electricity goes out unexpectedly.  We are virtually helpless until we locate that flashlight we had placed in a closet for just such an emergency.
As the Light, Jesus pushes back the darkness and helps us find our way in a chaotic world.  He reveals God in all His righteousness, and He bridges the gap that separates sinful humankind from a holy God.  He gives us insights from God’s written Word, the Bible, that enable us to make wise decisions and live in accordance with His will.
Just as Jesus is the Light of our lives, He expects us as Christians to reflect His light to others.  In His Sermon on the Mount, He called us “the light of the world” (Matthew 5:14).  Then He challenged us to “let your light do shine before men, that they may see your good works, and glorify your Father which is in heaven” (Matthew 5:16).
The apostle John also refers to Jesus as the True Light (John 1:9).