Please see the Carols We Love by Daniel Partner, Barbour Publisher, Ulrichsville, OH 2002.
"Hark the Herald Angels Sing" was written by Charles Wesley, brother of John Wesley, founder of the Methodist movement. Charles Wesley wrote over 6000 hymns, which he used to tech gospel messages. Hark the Herald Angels Sing is no exception. This song teaches of man's relationship to Christ as Jesus reconciles sinners with God. The song also gives three reasons for Christ's birth:
Born that man no more may die
Born to raise the sons of earth
Born to give them second birth