"Then Jesus again spoke to them, saying, 'I am the Light of the world; he who follows Me will not walk in the darkness, but will have the Light of life.'” (John The light metaphor is the second of seven "I am" metaphors our Lord used to describe Himself in the gospel of John. In this 20-Minute Bible Study, we’ll take a close look at what this metaphor reveals about Jesus and what it has to teach us about earning rewards in the Kingdom of Heaven.