"Lux Aeterna" (eternal light) a choral setting of Nimrod by Edward Elgar, arranged by John Cameron is from the Enigma Variations, published around the turn of the 20th century. Now each of the 16 Variations related to a friend or relative of Elgar, and is each one's approach to the enigma, which has never been conclusively answered. Nimrod was a Biblical character described as a mighty hunter and the Lux Aeterna paints a portrait of Elgar's beloved music editor, Augustus J Jaeger. "Jaeger" is German for "Hunter".
The piece is in Latin, the text is from the Requiem Mass of the Roman Catholic Church. It translates as:
May light eternal shine upon them, O Lord, with Thy saints forever,
for Thou art Kind.
give to them, O Lord,
and let perpetual light shine upon them.