"In His Sermon on the Mount, Jesus told His followers, 'You are the light of the world. A city on a hill cannot be hidden' (Matthew 5:14). As His disciples, we are what Dietrich Bonhoeffer refers to as 'the visible community.' Bonhoeffer asserts that Jesus did not say 'BE the light.' Instead, He said, 'You ARE the light.' It isn't for us to decide. We may choose, of course, to cover the light or hide it under a bushel. But what a privilege it is to let our light shine for the world to see--the blessed light of Jesus Christ in us! Not to reveal any radiance of our own, but to glorify our Father in heaven. To be seen kneeling at the foot of our Savior's cross, on the mountain called Calvary, under the sweet light of His resurrection. A joyous honor, indeed!"
--Taken from the Forward by Steve Hindalong in City on a Hill: Reflections on Our Spiritual Journeys