A man who has no part in the grace of God, cannot keep the commandments of God, or prepare himself, either wholly or in part, to receive grace; but he rests of necessity under the power of sin.
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