"Different words than I have ever heard..."
Lots of words have been set to that music, including a very ugly version from Germany during the 40's.
ANTHEM, NICK GLENNIE-SMITH SUNG BY THE ARMED FORCES CHORUS WITH THE US MARINE CHAMBER ORCHESTRA
To fallen soldiers let us sing Where no rockets fly nor bullets wing Our broken brothers let us bring To the Mansions of the Lord.
No more bleeding, no more fight No prayers pleading through the night Just divine embrace, eternal light In the Mansions of the Lord.
Where no mothers cry and no children weep We will stand and guard though the angels sleep Through the ages safely keep The Mansions of the Lord.
Randall Wallace
I'm sure they have. I just haven't heard them. :-\