The classical definition of Theology is "The study or science of God." Millard J. Erickson once famously stated, "Theology is necessary because truth and experience are related. While some would deny or at least question this connection, in the long run the truth will affect our experience. A person who falls from the tenth story of a building may shout while passing each window on the way down, “I’m still doing fine,” and may mean it sincerely, but eventually the facts of the matter will catch up with the person’s experience."
William Lane Craig stated, "...if God does not exist and there is no immortality, then all the evil acts of men go unpunished and all the sacrifices of good men go unrewarded. But who can live with such a view? Richard Wurmbrand, who has been tortured for his faith in communist prisons, says,
The cruelty of atheism is hard to believe when man has no faith in the reward of good or the punishment of evil. There is no reason to be human. There is no restraint from the depths of evil which is in man. The communist torturers often said, 'There is no God, no Hereafter, no punishment for evil. We can do what we wish.' I have heard one torturer even say, 'I thank God, in whom I don't believe, that I have lived to this hour when I can express all the evil in my heart.' He expressed it in unbelievable brutality and torture inflicted on prisoners."