Getting back to David Haas’s “Table Songs” book, this song is based on the Berakoth.
When you listen to his version at Myspace, you will see how much it depends on the harmonies in the refrain and the skill of the cantors. I suspect it is too fragile a tune for stomping on by the assembly.
The text is here.
My backing is a bit basic but will be OK for learning purposes.
This is a favourite in our parish, where we have been singing it for years! The assembly are fine with it – just a little leadership from the choir on holding the notes (helped tremendously if the choir can sing a harmony line or two), and to get those top notes.