Sing to the Lord with grateful praise; make music to our God on the harp.
Psalm 147:7
Words: J. H. Horst. Translated from German to English by Frederick W. Herzberger in The Christmas Song Book, compiled by Adolf T. Hanser (Buffalo, New York: Dahlke Publishing, 1918), number 20.
Music: Edmund S. Lorenz (🔊 pdf nwc).
If you know the original German title, Horst’s full name, where to get a good picture of him or Herzberger (head & shoulders, at least 200×300 pixels),

Tune your harps to gladdest song,
Christians far and near;
Carol with the angel throng,
Christmas time is here;
Christ the Savior now is born,
Born to bring all men
Long in sin and death forlorn,
Back to Heav’n again.
Refrain
Sing with happy voice;
In the Christmas Child rejoice,
Leading us from sin’s dark night,
Into Heaven’s shining light,
Into Heaven’s shining light.
God’s incarnate Son steps down
From His throne on high,
Lays aside His mighty crown,
Comes to serve and die;
Comes to conquer death and hell,
Set the sinner free;
Ransomed hosts His glory tell
Through eternity.
Refrain
Welcome then with hymns of praise
Heaven’s royal Guest;
In your hearts His temple raise,
Ask Him there to rest.
He will quiet all your fears,
Bless with richest love,
Take you from this vale of tears
To His home above.
Refrain