The fourth verse of "Hark..." has several alternatives. Another (differing from 5th line on):

Come, Desire of nations, come,
Fix in us Thy humble home;
Rise, the woman's conquering Seed,
Bruise in us the serpent's head.
Now display thy saving power,
Ruined nature now restore;
Now in mystic Union join
Thine to ours, and ours to thine.
Hark! the herald angels sing,
"Glory to the newborn King!"

The third verse also has an alternative:

Mild he lays his Glory by,
Born that men no more may die,
Born to raise the sons of earth,
Born to give them second birth.
Risen with healing in his wings,
Light and life to all he brings,
Hail! the Sun of Righteousness!
Hail the heaven-born Prince of Peace!
Hark! the herald angels sing,
"Glory to the newborn King!"

This Christmas, I sang "O Little credit card, you bring me Christmas Cheer,..."

All of these are in: Hymns and Carols