Durch Adams Fall ist ganz verderbt (BWV 637) Orgelbüchlein

Bach has impressively portrayed the depravity/corruption/sinfulness of mankind addressed in the chorale with the "depraved" diminished sevenths in the pedal and the omnipresent chromaticism.
I hope that the chosen registration ("Grand Jeu" of the balustrade positive with tremolo forte and the three pedal reeds) expresses this appropriately.
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Author: Lazarus Spengler (1524)
Chorale Melody: Durch Adams Fall ist ganz verderbt | Composer: Anon
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Durch Adams Fall ist ganz verderbt
Menschlich Natur und Wesen,
Dasselb Gift ist auf uns errebt,
Daß wir nicht mocht'n genesen
Ohn' Gottes Trost, der uns erlöst
Hat von dem großen Schaden,
Darein die Schlang Eva bezwang,
Gotts Zorn auf sich zu laden.

Through Adam’s fall human nature
and character is completely corrupted,
the same poison has been inherited by us,
so that we would not be able to recover health
without comfort from God, who has redeemed us
from the great harm
that was done when the serpent overcame Eve
and led her to bring God’s wrath upon herself.