On Sunday, October 12, 2025, Cole Tuck delivered a compelling sermon titled "The Moral Argument" as part of the Christian Evidence series at Avenue T Church of Christ. The sermon focused on the moral argument for God's existence, emphasizing that objective morality—universal standards of good and evil—requires a transcendent moral lawgiver. Cole argued that if objective morality exists, it can only be grounded in God, and since objective morality is evident in human experience, God must exist. He contrasted this with subjective morality, which reduces right and wrong to personal or cultural opinions, leading to inconsistencies and moral relativism.

Cole addressed alternative explanations for morality, such as individual choice, societal norms, evolution, science, and government, demonstrating their inadequacy in providing a foundation for objective morality. He also resolved the Euthyphro dilemma, asserting that God's nature is the standard of goodness, neither arbitrary nor external. The sermon concluded with a call to recognize that humans, made in God's image, instinctively acknowledge objective morality, reinforcing the argument for God's existence.