This is a song for Eucharist by Darryl Ducote of The Dameans based on John 6. It looks like it might have been used for a fraction rite in less prescriptive times, but is fine for communion generally. It sounds great as a solo or performance piece with lots of harmonies and descants. I suspect the assembly would be best to stick to the melody portion of the refrain.
The text is at Hymnary.
The sheet music is available at OCP and GIA.
Mary at Godsongs has looked into the background of this one for us.
The Dameans in all their folky goodness:
Chris Brunelle:
Janet America Flores: