To me this song is about how god gave up his only son and sent him to Earth. Jesus (God's son and the lord) was born from the Virgin Mary, she is also known as Marry. Some people refer to her in different ways. But anyways I think it's about how people are singing this song worshiping God and Jesus following the star to the manger were they find baby Jesus in his bed of hay. They sing bowing to the new born child as he is their king, the only son of god himself in living flesh right before them. They raise their hands singing still as the baby smiles soon growing up. He had worshipers everywhere. So many he couldn't count them all. Finally the day comes where he is hung onto a cross sacrificing his life for us all. Us being the foolish people we are today, judging people for being them self's and hurting people close to us. He cleaned us of all our sins and so we made this song praising him, the son of God, Marry and Joseph, we give him thanks, the thanks we hope he hears as we sing this song for him up in heaven with his holly father, God.