This is a foundational teaching for all Christians. If you go through this book and follow the teaching examples, take the test, and look up the Scriptures referenced you will grow spiritually more than from any other one book I have ever read. This is the most comprehensive work of this type in print. Brilliant scholarship, in-depth presentation, and exhaustive references. It is comparable to 3 years of seminary studies. I don?t agree with everything Dake teaches but that takes nothing away from the value of this work, it is a must. Every Scripture is sited and no one could work through this book and come away the same. It is a path to spiritually maturity and the single best investment to Christian grow I believe a person can make.