The words were translated from a 6th century Latin hymn "Jam Christe, sol justitiae", by American Roman Catholic Dominican friar Francis "Frank" Currier Quinn (1932-2008 - ref).
It is not the same as "O Sun of Justice, Jesus Christ" - another translation by Peter J Scagnelli.
With meter 8 8 8 8, tunes these words have been set to include:
- ROCKINGHAM, adpt Edward Miller
- WAREHAM by William Knapp (1698-1768)
