"Furthermore, [we reject the error] that original sin is only an external impediment to man's good spiritual powers and not the complete deprivation or loss of the same, just as garlic juice, smeared on a magnet, impedes but does not remove the natural powers of the magnet."
Have fun with this one! Leave your guess in the comments section below. Answer to follow next week. No google searches or cheating.
This one is for all my Lutheran friends. As many of you guessed, this comes from the Formula of Concord, The Epitome, part one, antitheses (# 5). It is found in the Book of Concord, Tappart ed, 468.