CWB II set this to RENDEZ A DIEU, which I blogged here, but CWB I chose WEISSE (GOTTOB, ES GEHT).
Hymnary lists ten possible settings for this text but none are this tune. They list 26 texts linked to this tune but none are this text. Were the editors of CWB I just being kind of obscure, or what?
The text is by Reginald Weber. I suppose a “mercy shed” is a place to store our “wine of the soul”.
The tune might be by Johann G. Wagner or Johann S. Bach or they may have just collected the tune from another German with a middle initial.
1 Bread of the world in mercy broken,
wine of the soul in mercy shed,
by whom the words of life were spoken,
and in whose death our sins are dead.2 Look on the heart by sorrow broken,
look on the tears by sinners shed;
and make your feast to us the token
that by thy grace our souls are fed.
This is the tune:
