These are the words that the author of the Third Gospel attributed to Mary, the mother of Jesus, concerning our Lord (Luke 1:46-55, NASB):

And Mary said:
    ”My soul exalts the Lord, 
         And my spirit has rejoiced in God my Savior. 
    ”For He has had regard for the humble state of His bondslave;
         For behold, from this time on all generations will count me blessed. 
    ”For the Mighty One has done great things for me;
         And holy is His name. 
    ^“AND HIS MERCY IS UPON GENERATION AFTER GENERATION
         TOWARD THOSE WHO FEAR HIM. 
    ”He has done mighty deeds with His arm;
         He has scattered those who were proud in the thoughts of their heart. 
    ”He has brought down rulers from their thrones,
         And has exalted those who were humble. 
    ”HE HAS FILLED THE HUNGRY WITH GOOD THINGS;
         And sent away the rich empty-handed. 
    ”He has given help to Israel His servant,
         In remembrance of His mercy, 
    As He spoke to our fathers,
         To Abraham and his descendants forever.”

When we can sing this song we can truly celebrate Advent for Advent reminds us of true royalty. It reminds us of the King who will rule justly. It is a promise that one day every thing will be made right again.

Only those who want to world system to remain as it is now reject the message of this song. The humble, the poor, and outcast, all rejoice. The Messiah will reign. This is Advent.