"'When an unclean spirit goes out of a man it wanders through waterless country looking for a place to rest, and cannot find one. Then it says, "I will return to the home I came from". But on arrival, finding it unoccupied, swept and tidied, it then goes off and collects seven other spirits more evil than itself, and they go in and set up house there, so that the man ends up by being worse than he was before. That is what will happen to this evil generation.'" Mt 12: 43-45