This song about the communal nature of sacraments is by the heavyweight team of Matt Maher and Tom Booth and is the last song in Spirit & Song Vol 2. I’m not sure if it is a communal song however. The second verse is a confiteor of sorts if that is useful.
The text is at spiritandsong where the sheet music can be purchased for download.
My backing is the first done I’ve done with Band in a Box 2015 and shamelessly uses spaghetti western guitar doodling:
Matt Maher:
Live:
A fine cover: