Let me start out with the correct way to punctuate the title; it should be “Hark! The Herald Angels Sing.” So the title actually comprises two sentences. “Hark!” is a one-sentence command meaning “Listen!” or “Pay attention!” (The same thing is going on grammatically in “Hark! I Hear the Harps Eternal,” which is also not typically punctuated properly.) And to whom should we pay attention? Why, the “herald angels,” of course. (Let’s spare everyone the joke about the angel’s name being “Harold,” okay?) A ”herald” is a messenger who sometimes blows a trumpet to get everyone’s attention before an announcement. The angels in the Christmas story don’t blow trumpets; they don’t even sing. They simply proclaim. So the illustration that I chose for this post is not correct biblically, but it does agree with the carol.