David Haas adapted several bible passages for the text of this song (I John 1:5, 3:2, 4:15, Psalm 33:6 and Gal 3:28). Any liturgy with a theme of “light” in the readings would be suitable for this hymn.
This is another with enough variation in the verses to suggest the use of a cantor.
The text is at Hymnary and the sheet music can be purchased at GIA.
My backing is at 85 bpm.