This prayer by Ken Canedo is a chant in the snippet at spiritandsong, but Ken Canedo’s version is less obviously so.
The text from 2 Cor 5:15, 12:7-10 is at the spiritandsong link above where the sheet music can be purchased for download. It has a counter-melody in the refrain, which I have not attempted. The third verse is more a bridge with a totally different melody to the first two verses. The metre is regular enough for assembly use if desired.
My backing gives it a beat.
A couple of neat covers: