As a thorough and orthodox outlining of the principles proclaimed by Holy Mother Church, this book dives into God's plan for every person's happiness, and examines the nature of sin and its social dimensions, as well as how the Ten Commandments and the Beatitudes guide our lives in community, and just what charity and justice should look like today. With an appendix on commonly held objections and questions about the social teachings of the Church, To Do Justice and to Love Mercy teaches people of all ages and backgrounds just how God intended his people to live in society.