In this episode, we trace the theology of lying from Genesis 3 to neuroscience: Satan as the father of lies (Jn 8:44), St. Augustine's two treatises insisting lying is *always* wrong, St. Thomas Aquinas on jocose, officious, and malicious lies, John Paul II's reading of the original sin as rooted in a lie about who God is, and what brain imaging at University College London now confirms about how each lie gets easier than the last. Dostoevsky's Father Zosima warns where it ends: "Above all, don't lie to yourself." The remedy isn't just *stop lying* — it's Aquinas's virtue of *veracitas*, practiced in the one place we're invited to speak without disguise: the confessional.