An antiphon is a sentence or phrase that is sung or chanted before and after a psalm or canticle in the Daily Office.
Since the 6th century, it has been traditional for Christians to pray the “O Antiphons” before and after the Magnificat (traditional prayed during evening prayer) during the octave—the last 8 days—of Christmas.
There is an antiphon for each of the seven days from December 17 through December 24.
You can find each antiphon and the date to sing or pray it in the Hymnal 1982, hymn 56.
Please join in praying these each evening during these next 7 days, and spend some time meditating upon each title of Jesus.