(Some optional material to supplement the Prayer Book office:)

Magnificat antiphons:

(December 24) When the sun has risen in the heavens, you shall see the King of kings proceeding from his Father, like a bridegroom from his chamber.

(December 25) This day Christ is born, this day the Savior has appeared, this day the angels sing on earth, the archangels rejoice. This day the just exult, saying, "Glory to God in the highest," alleluia.

Benedictus antiphon:

Glory to God in the highest and peace to men of good will, alleluia, alleluia. 

Responsories (between the readings):

The Word was made flesh, alleluia, alleluia. The Word was made flesh, alleluia, alleluia. And dwelt among us.  Alleluia, alleluia. Glory to the Father, and to the Son, and to the Holy Spirit. The Word was made flesh, alleluia, alleluia.

The Lord has made known, alleluia, alleluia.  The Lord has made known, alleluia, alleluia. His salvation, alleluia. Glory to the Father, and to the Son, and to the Holy Spirit. The Lord has made known, alleluia, alleluia. His salvation, alleluia.

(From the Benziger Roman Breviary, 1964)