RS’s parish used this Eucharistic hymn last week and since I hadn’t come across it before so I’ve made a backing for it. The tune and refrain text are by Dominic MacAller and the verses’ lyrics are by Owen Alstott.
The refrain is very long, and that means you might not get more than one or two of the verses done.
I have it in OCP’s Guitar Accompaniment Book. The sheet music can also be purchased for download at OCP. The text is available in their sample.