"O come, all ye faithful, joyful and triumphant, O come ye, O come ye, to Bethlehem. Come and behold Him, born the King, Angels and archangels, their sweetest anthems sing.
Here's a sample text from a hymn book that might be included in "With Joyful Lips":
O come, let us adore Him, Christ the Lord. O come, let us adore Him, Christ the Lord.