Third Antiphon –
December 19th: O Virga Jesse
O Flower of Jesse’s stem, you have been raised as a sign for all peoples; kings stand silent in your presence; The nations bow down in worship before you. Come, let nothing keep you from coming to our aid.
Here we call on the Lord as the seed, flower or descendant of the root or stock of Jesse, the father of King David. The Messiah comes from a royal line sprung from his human ancestor Jesse. He is the sign born of the Virgin, for all the nations to see. The East portrays the prophecy of Isaiah, “the Virgin shall conceive and bear a son,” with the child enclosed in a circle on his mother’s breast and calls that icon the Virgin of the Sign. We call on him now to come and help our sinful and weary world.
 Is. 11:10
 Is. 5:15
 Heb. 2:3
For more visit here: O Antiphons Reflections from Fr. Giles Dimock O.P.
The O Antiphon reflections are from Musings: Liturgical and Charismatic authored by Fr. Giles Dimock, O.P. and published by Discerning Hearts®
You can find the book here