The biblical account in 2 Samuel 12, where Nathan the Prophet confronts King David after his adultery with Bathsheba and the murder of her husband Uriah, serves as a profound narrative of justice and mercy. Nathan tells David a parable about a rich man who takes a poor man’s only lamb to prepare a feast for a traveler, prompting David to declare that the rich man deserves to die. Nathan’s response, “You are the man!” reveals David’s guilt, leading him to repentance. This story reflects the complex interplay between justice (the rich man’s punishment) and mercy (David’s opportunity for repentance). David’s reaction—repentance and acceptance of his wrongdoing—exemplifies a key aspect of ethical leadership: acknowledging mistakes and seeking to make amends. In the modern era, where AI increasingly plays a role in decision-making processes, the lessons of justice and mercy from this story are crucial. AI systems are being integrated into criminal justice, healthcare, and social services, where their decisions can have significant impacts on human lives. How can these systems be designed to balance the strictness of justice with the flexibility of mercy?