Offertory switch

As I am wont to do on occasion, I played a piece for the offertory last Sunday different from what was printed in our worship bulletin. It being the week during which we organists celebrated the 327th birthday of JS Bach, I knew I wanted to play a chorale prelude but changed which one at the last minute. I went with "Christus, der uns selig macht, from the Orgelbuchlein collection. Here is the text and English translation of the first stanza of this hymn:

Christus, der uns selig macht,
kein Boes hat begangen,
ward fuer uns zur Mitternacht
als ein Dieb gefangen,
gefuerht vor gottlose Leut
und faelschlich verklaget,
verlacht, verhoehnt, und verspeit,
wie denn die Schrift saget.

Christ, who makes us blessed,
and who had done no evil,
for us was taken at midnight,
like a thief,
led before godless people,
and falsely accused,
jeered, mocked and spat upon,
as the Scripture says.

The coolest part of this particular setting of the chorale is a point near then end when the soprano voices contains a G and the bass an F-sharp; the alto a C-natural and the tenor a C-sharp! The chorale prelude is treated as a canon (two voices contain the melody but follow each other in this case by two beats), and is full of dissonance. But that moment is special to me.