As for the demented, I hold it certain that all beings deprived of reason are thus afflicted only by the Devil.
Martin LutherJesus Christ never died for our good works. They were not worth dying for. But he gave himself for our sins, according to the Scriptures.
Martin LutherSheep, cattle, men-servants were all possessions to be sold as it pleased their masters. It were a good thing were it still so. For else no man may compel nor tame the servile folk.
Martin LutherThe Devil can so completely assume the human form, when he wants to deceive us, that we may well lie with what seems to be a woman, of real flesh and blood, and yet all the while 'tis only the Devil in the shape of a woman. 'Tis the same with women, who may think that a man is in bed with them, yet 'tis only the Devil; and...the result of this connection is oftentimes an imp of darkness, half mortal, half devil.
Martin Luther