“In John 9, right before Jesus heals a blind man he says: “I am the light of the world. Whoever follows me will not walk in darkness, but will have the light of life.” The miracle of giving sight to the man born blind demonstrates the purpose of Jesus’ ministry. It illustrates Jesus’ power to bring his light to those in darkness.
Jesus is driving home a point for us when he declares that he is the light of the world in the presence of a blind man.”
Great illustration and truth about John 9 from Justin Holcomb at The Resurgence.