An interesting take on the problem of evil and free will

Lewis notes that the devil has set himself up as the prince of this world. He also notes that this is either God's will (which would be strange) or it is not God's will (if it is not then how can anything happen that isn't the will of an all powerful God). He uses an interesting analogy to explain this. Take for instance a Mother who wants her children to keep their rooms tidy. However, to teach the children responsibility she isn't going to force them to tidy their rooms every day after supper. Days later she goes up to the room and finds things strewn all across the room and it in disrepair. It is both the will and not the will of the Mother that finds this set of circumstances existent. So it is with God. God desires us to live in accordance with Him and yet He does not force that upon anyone. The same is true in any type of organization. The boss may want something done but sets it up to be done voluntarily. If only half the people do what the boss wants it is both his will and not his will