Big, readable lyric slides for church, school concerts, carol nights and family sing-alongs, plus a one-page printable song sheet. 3 verses, refrain included. Free, no sign-up.

attr. John Francis Wade, tr. Frederick Oakeley (1841). Public domain.
1.
O come, all ye faithful, joyful and triumphant,
O come ye, O come ye to Bethlehem;
Come and behold Him, born the King of angels;
Refrain:
O come, let us adore Him,
O come, let us adore Him,
O come, let us adore Him,
Christ the Lord.
2.
Sing, choirs of angels, sing in exultation;
Sing, all ye citizens of heaven above!
Glory to God, glory in the highest;
Refrain:
O come, let us adore Him,
O come, let us adore Him,
O come, let us adore Him,
Christ the Lord.
3.
Yea, Lord, we greet Thee, born this happy morning;
Jesus, to Thee be glory given;
Word of the Father, now in flesh appearing;
Refrain:
O come, let us adore Him,
O come, let us adore Him,
O come, let us adore Him,
Christ the Lord.
More carols: Silent Night · Joy to the World · Hark! The Herald Angels Sing · O Little Town of Bethlehem · Away in a Manger · Angels We Have Heard on High · The First Noel · Deck the Halls · Jingle Bells