This was the first book I've read concerning the differences between Covenant and Dispensational theology. As such, my review is coming from someone who is just learning about this distinction and the way the distinction can be described by any particular author.
That said, I found this book to be extremely helpful. I had recently been having several conversations with a man who believes in Covenant theology and I myself am becoming more convinced of the validity of and scriptural basis for Dispensationalism. I found many of the topics that came up in my conversations to be represented in this book which argued convincingly for a Dispensationalism interpretation. That is clearly the perspective of the author but he also describes several of the views within Covenant theology.
Already leaning toward Dispensationalism and it being the perspective of the author of this book, I wasn't really surprised to become more convinced of the biblical nature of Dispensationalism. I rented this book from the library but I think I will purchase it as I think it will make a great reference book when I am wondering about any of the topics represented here or am having a conversation with someone of a different perspective.
This book, didactic in nature, is extremely well-organized and well-written and I think it draws logical conclusions from the Scriptures. Showers' formatting makes it very easy to follow his line of reasoning and he provides scriptural and historical evidence in abundance. The consistency of his method may feel repetitive but, to me, it fortified his conclusions and I appreciated being shown each argument by the same method as the previous one. Being so new to this discussion I thought a lot of this would be over my head but the subject matter really is dealt with in a very common, down to earth manner. The chapters are nicely divided and the book follows a logical progression of topics.
According to the conclusion of this book, the distinction between these two theologies matters in arguments of "how God fulfills His ultimate purpose for history, how prophetic passages of the Scriptures are to be interpreted, the nature and significance of some of the biblical covenants, God's program for the nation Israel, the nature of the Kingdom of God, the beginning, nature, and the distinctiveness of the Church, and the means through which the Christian is to live a godly life in this present world." I thought this book covered these topics quite nicely and it turned out to be a great place for me to start. I'm interested to read some of the books referenced by Showers' and possibly some books with a Covenant perspective just to see how someone with a Covenant perspective would approach this discussion. I recommend this book, especially to beginners in this discussion and for people looking for the scriptural passages that discuss these topics.