"Scripture refers to the devil as 'unclean' because from the beginning he rejected humility and espoused arrogance. As a result he is called an unclean spirit throughout the Scriptures. For what bodily uncleanliness could one who is com­pletely without body, fleshless and weightless, bring about in himself so as to be called 'unclean' as a result ? Clearly he was called unclean because of his arrogance, defiling himself thus after having been a pure and radiant angel."