The problem of evil didn’t use by Hume (and also not by three speakers, Demea, Cleanthes and Philo in Dialogues) as an argument against the existence of God. He on/y tries to reconcile the existence of God and the existence of the evil in the world. And he also insist to refute the inference of perfect attributes of God from the world. Can the prevalence of evil and suffering be reconciled with the claim that an omnipotent, omniscient and wholly good God governs the universe? We can find three affirmative answers for this question from the speakers who practice the Dialogues: Demea, applies to reconcile this contradiction (if it is) by 'the best possible world’ theory. Cleanthes, wants to solve this problem by supposing the ‘Author of nature to be finitely perfect; though for exceeding mankind’. And the other speaker Philo, thinks that the problem of evil is not a problem for theism. Because when God create the world he ‘has no more regard to good above ill then to heat above cold, or to drought above moisture, or to light above heavy. ’