Hymn for Vespers and Matins on the Feast of Christmas; Ambrosian school, 6th century. It has 25 translations. The one given in Britt is by J. Neale, T. Potter, and the Evening Office of 1710; the sixth verse reads:

And we who, by Thy Precious Blood

From sin redeemed, are marked for God,

On this the day that saw Thy birth,

Sing the new Bong of ransomed earth.