The phrase repeats itself over and over again in his mind: "Silent night, holy night, Stille nacht, heilige nacht." Father Joseph Mohr, Parish Priest. It's the first line from a poem this young Austrian priest had written two years before. Now he can't get the phrase out of his mind. "Silent night, holy night." Tonight is Christmas Eve and St. Nicholas Church in Oberndorf, north of Salzburg, will be chock-full of people. Father Joseph Mohr has a homily in mind, a message for his flock on this sacred night, but he needs a carol, something special to cap off the service.