Waterboarding is nothing compared to that. Note that inherent in the appalling technique you have just described, the victim must stand for hours while they complete one hymn - no breaks. And when the interrogator says that it will be a medley of hymns - all verses, please - even the most hardened ones break. And ask for ricin-laced jello!
HAHAHAHAHA!
(I love Lutheran jokes...my son-in-law is a Lutheran pastor!)