John 1:5-9 (ESV)
5 The light shines in the darkness, and the darkness has not overcome it.
6 There was a man sent from God, whose name was John. 7He came as a witness, to bear witness about the light, that all might believe through him. 8 He was not the light, but came to bear witness about the light.
9 The true light, which gives light to everyone, was coming into the world.