If God is the Creator of all things and evil is a thing, then God is the Creator of evil and He is to be blamed for its existence. No, evil is not a thing but a wrong choice, or the damage done by a wrong choice. Evil is no more a positive thing than blindness is, but it is just as real.
Peter KreeftA saint is Christ's bride, totally attached, faithful, dependent. A saint is also totally independent, detached from idols and from other husbands... A saint is higher than anyone else in the world. A saint is the real mountain climber. A saint is also lower than anyone else in the world. As with water, he flows to the lowest places - like Calcutta.
Peter Kreeft