I read this book when I heard Jack Hayford mention it during one of his sermons. Given the title and era in which it was written, I expected it to contain some pretty weighty material about Christian living. I was not disappointed.
In this book, Law challenges the reader to respond to his "serious call" (and he was very serious when he wrote it) to devout living. The author makes a very solid case for this approach to Christian living for two main reasons. First, he is dead right about most topics he covers. His main point is that many Christians (I fall into this category) take for granted what God has done for us. There is no higher call than to love and serve Him. Yet we do not place as much value on spending time in devotion (prayer, reading scripture, praising, worshiping, serving) to God as we should. Instead we lived unbalanced lives in which God has a secondary role, instead being the primary focus of our existence.
Secondly, as another reviewer mentioned, his message is as relevant today, if not more so, than when it was written. We live in a day were modesty and pious living are completely ignored. It was refreshing to read a book which calls Christians to a much higher standard - we should not crave the things of this world. It is something I have struggled with, and continue to struggle with everyday that I live in overly abundant America. This book has helped me regain a more proper perspective on the importance of living for God (and what that means) versus living for the world.
I highly recommend this book to any Christian looking for a well written resource about living a life devoted to God. Law provides a lot of deep thought about the subject, and practical ways to try and live it out. At times, he goes a little bit too much into legalism for my taste, but overall he is on the mark with his approach and logic for his "serious call".