The church is not relevant to the world because we look and act like the world or share its interests. We are relevant because we seek to submit ourselves to Christ in every aspect of life, and He transforms our interests, actions, and appearance. It is our distinction from the world that makes us relevant, and the greater our distinction, the greater our relevancy. The distinctiveness of salt causes it to impact the thing upon which it is poured. The unique qualities of light distinguish it from darkness.