In "On Lying" by Saint Augustine of Hippo, the renowned theologian dives into the moral implications of deception and falsehood. Augustine argues that lying is inherently sinful and goes against the teachings of Christianity, as it disrupts the natural order of truth and morality. He explores the complexities of lying, including its potential harm to oneself and others, as well as the potential for reconciliation and redemption through honesty and repentance. Augustine's insights are thought-provoking and challenge readers to consider the consequences of their actions and the importance of living a life of virtue and integrity. Overall, "On Lying" is a timeless and profound examination of the ethics of truth-telling that is sure to inspire reflection and introspection.

Book Description:
I have also written a Book on Lying, which though it takes some pains to understand, contains much that is useful for the exercise of the mind, and more that is profitable to morals, in inculcating the love of speaking the truth. This also I was minded to remove from my works, because it seemed to me obscure, and intricate, and altogether troublesome, for which reason I had not sent it abroad. - Summary by Augustine