I'm tired of seeing that stupid Epicurous quote, so I'm going to tell a story.
There once was a man who went to go get his hair cut. He went to the barber, sat in the chair and said to the barber, "I don't believe in God, if he was real, why is there so much pain and suffering in the world?" The barber talked about God and his beliefs until the man finished getting his hair cut. He paid the barber, and left. Outside, a homeless person walks up to man, he says, "I don't believe in that barber, if he was real, why are there so many men walking around with long hair?"
The moral of the story? You can't just do nothing and expect God to fix your problems, you have to seek him.