Final answer:
Enlightenment thinkers were concerned about the spread of organized religion and its political power. They advocated for the separation of church and state and emphasized individual conscience and religious tolerance.
Step-by-step explanation:
During the Enlightenment, some thinkers expressed concerns about the spread of organized religion and its political power. They sought to curtail the influence of religion in government and prevent religious conflicts similar to those that had occurred in the previous century. Enlightenment thinkers like Voltaire believed that a society without a belief in a punishing God would undermine the moral order. They advocated for the separation of church and state and emphasized the importance of individual conscience and religious tolerance.