There should be an apostrophe before EVKXR, but “Silent Night” often omits it too.
Old Johnny Carson bit was reading items sent to him by grade school teachers.
One teacher had asked her class to draw a nativity scene. Little Ralphie’s picture had the sheapherds, Wise men, Mary and Joseph and off to the side, a little fat guy. When teacher asked who *that* was, Ralphie replied, “Round John Virgin.”