I am a light, set up to guide and warn mariners, and to point out the way to the have

I am a light, set up to guide and warn mariners, and to point out the way to the haven of safety. I am exhibited, as a beacon, to warn off the rocks and shoals, which lie in the way of navigation; and to direct into channels, where the voyager may see his marks, and safely erect his beacons. I am a light, which shows, not only where dangers are, but where they are not; and, by exhibiting false