Note 9 at Mt. 5:14: Light enables us to see. The world, which is in darkness, has to have us to release the light of the glorious gospel of Jesus Christ so that their blinded eyes may be opened (2 Cor. 4:4). Jesus is the light of the world (Isa. 49:6; Mt. 4:16; Lk. 2:32; Jn. 1:4-9; 8:12; 9:5; 12:35- 36). His disciples are also called the light of the world (Mt. 5:14; Eph. 5:8; Phil. 2:15; 1 Th. 5:5). John 9:5 shows that as long as Jesus was in the world in His physical body, He was lighting the way to the Father. He now shines through our lives. Again, our responsibility to be a witness to the world is being stressed. The purpose of a light is to dispel the darkness and allow us to see. Therefore, "let your light shine before men" (vv. 15-16).