Final answer:
False. Immanuel Kant did not revise Duty Theory to suggest that we have no duties to God due to a lack of knowledge of God.
Step-by-step explanation:
False Immanuel Kant, a devout Christian, did not revise Duty Theory by saying we have no duties to God since we lack knowledge of God. In fact, Kant's philosophical approach focused on reason and ethics that were not based on faith in God. He developed deontological ethics, which emphasized moral duties and obligations based on reason and rationality. Kant believed that moral actions were guided by categorical imperatives, which are rules that any rational being can and should accept.
Issues with Kant's Duty Theory include the challenge of applying it universally, given that it assumes rationality as a prerequisite for moral consideration, potentially excluding non-humans or humans with cognitive impairments. Moreover, Kant's theory can sometimes struggle to resolve conflicts between different moral duties.