[vandalism deleted]
It is a spiritual with no known composer.
Leo Arnaud
[vandalism deleted]
Sir Oscar S. Manalo Sr.
psalmist
Thyagaraja!
Macario Fronda is the Composer of Slu HYMm
Leo ArnaudIt
http://www.sheetmusicplus.com/title/Fantasy-on-a-Hymn-by-Justin-Morgan/19259707
One famous hymn composer was Charles Wesley, who wrote over 800 hymns. One of his most famous is O For a Thousand Tongues.
It might very well be considered a Catholic hymn as Cary Landry is a composer of Catholic liturgical music.