Since this year has the shortest Advent season possible, I thought it might be good to look at the “O Antiphons” that we recite during this week before Christmas as the alleluia verse at each Mass. If you want to see a different form of them, you may want to turn to song number 20 in the missalettes. With some minor adjustments, these alleluia acclamations were transformed into one of the favorite songs of the Advent season.
December 17: O wisdom of our God most high, guiding creation with power and love: come to teach us the path of knowledge!
December 18: O leader of the house of Israel: giver of the law to Moses on Sinai: come to rescue us with your mighty power!
December 19: O root of Jesse’s stem, sign of God’s love for all his people: come to save us without delay!
December 20: O key of David, opening the gates of God’s eternal kingdom: come and free the prisoners of darkness!
December 21: O Emmanuel, our King and giver of Law: come to save us, Lord our God!
December 22 and 23: O King of all nations and Keystone of the Church: come and save man, whom you formed …read more

Source:: Fr. Frank Jindra’s Homily Podcasts