📒 In dealing with the many different doctrines of his day concerning sin, Tulloch lays out his six different lectures on the topic. Using the Old and New Testaments, he dives deep into the teachings and orthodoxy of the past to prove his point on what sin is and how it affects us all. In order to refute many other religions, he takes examples from them as well to show how tenable the Christian position is with being the true faith.