Remember-she's a 13-14 year old unmarried woman. This pregnancy could cast her out of society, even invoking the death penalty. Most people in similar circumstances would not sing or rejoice! What gives Mary her joy? She has
perspective-she knows that beyond her frightening human circumstances is a purpose, a place in history. She understands that God is working through even this most difficult of situations. She believes the angel! And so, from this perspective, she can rejoice.
Here is Mary's song. Consider your own very human circumstances, even the most difficult and imagine matching your voice to Mary's:
My soul glorifies the Lord and my spirit rejoices in God my Savior,
for God has been mindful of the humble state of his servant.
From now on all generations will call me blessed, for the Mighty One has done great things for me-holy is God's name! God's mercy extends to those who are in awe, in all generations God has performed mighty deeds and has scattered those who are proud. God has brought down rulers from their thrones and has lifted up the humble. God has filled the hungry with good things and has sent the rich away empty. God has aided Israel, in great mercy and fulfills all the divine promises! (Luke 1: 47-55)