This is a text by James Quinn based on John 15 that is really rather clunky. You can find the lyrics here.
GA sets it to JESU DULCIS MEMORIA Mode 1 arranged by Richard Proulx, a chant setting.
I can’t do much with that but I noted in Together in Song (641) it is set to a traditional Irish melody SUANTRAI. You can also find it in WORSHIP (590). GIA have John Bell’s arrangement of this setting to purchase here.
That is more my speed so I piked on the chant and made this backing complete with coastal sounds sample: