Evil, and evil spirits, devils and devil possession, are the outgrowth of man's inadequate consciousness of God. We must avoid thinking of evil as a thing in itself-a force that works against man or, against God, if you will.
There is no such thing as a lack of faith. We all have plenty of faith, it's just that we have faith in the wrong things. We have faith in what can't be done rather than what can be done. We have faith in lack rather than abundance but there is no lack of faith. Faith is a law.