god left the believers in their existing state for no other reason than to distinguish the evildoers from the virtuous ones. god does not inform you of the unseen. he chooses for such information anyone of his messengers that he wants. have faith in god and in his messengers. if you have faith and are pious there will be a great reward for you.
ما كان الله ليذر المؤمنين على ما أنتم عليه حتى يميز الخبيث من الطيب وما كان الله ليطلعكم على الغيب ولكن الله يجتبي من رسله من يشاء فآمنوا بالله ورسله وإن تؤمنوا وتتقوا فلكم أجر عظيم