Here is a very interesting interview of Peter Brown, famed biographer of St. Augustine, and Al Mohler. Augustine is one of those figures who is so enormous that he must constantly be revisited. As new documents are discovered, particularly Augustine’s sermons, deepening insights are shaped that bring new understandings to the development of western Christianity.
By the way, many western Christians would do well to understand more of the shaping of eastern Christianity, the Greek speaking church. There is a richness there that informs the more legal and intellectual forms of Christianity in the west.