Here are some more more forgotten verses from another familiar Christmas carol:

True God of true God, Light from Light Eternal,
Lo, He shuns not the Virgin’s womb;
Son of the Father, begotten, not created;
O come, let us adore Him,
O come, let us adore Him,
O come, let us adore Him,
Christ the Lord.

See how the shepherds, summoned to His cradle,
Leaving their flocks, draw nigh to gaze;
We too will thither bend our joyful footsteps;
O come, let us adore Him,
O come, let us adore Him,
O come, let us adore Him,
Christ the Lord.

Lo! star led chieftains, Magi, Christ adoring,
Offer Him incense, gold, and myrrh;
We to the Christ Child bring our hearts’ oblations.
O come, let us adore Him,
O come, let us adore Him,
O come, let us adore Him,
Christ the Lord.

Child, for us sinners poor and in the manger,
We would embrace Thee, with love and awe;
Who would not love Thee, loving us so dearly?
O come, let us adore Him,
O come, let us adore Him,
O come, let us adore Him,
Christ the Lord.

“O Come All Ye Faithful”
John F. Wade
Written around 1743
As found in the Cyber Hymnal