I have seen, and have testified that this is the Son of God."

 (i) The light Jesus brings is the light which puts chaos to flight. In the creation story God moved upon the dark, formless chaos which was before the world began and said: "Let there be light" ( Genesis 1:3). The new-created light of God routed the empty chaos into which it came. So Jesus is the light which shines in the darkness ( John 1:5). He is the one person who can save life from becoming a chaos. Left to ourselves we are at the mercy of our passions and our fears. 