This is a perennial favorite, and apparently from Google search, it is also liked by many, many other individuals. 😉
This would work great for your choir, small group, orchestra, etc.
Bonus: for music lovers – this is a neat arrangement of it – performed by strings and vocal.
Where to find:
Living Hymns (1st and 2nd edition) #268
Great Hymns of the Faith #466
(In addition, this link has a pianist playing the music score, and similarly, this link has the hymn page with piano accompaniment.)