Packer, J. I. Knowing God. IVP, 1973.
There is good reason that this book is considered a classic. It is an accessible introduction to the essentials of the Christian faith. A Christian with few books who mastered this one alongside his Bible would truly be a theologian in the older sense of theology: the science of living blessedly forever.










This is the first book I would recommend buying on the Ten Commandments (although Udemans’ The Practice of Faith, Hope, and Love ranks with it). Since this book is derived from sermons it provides both exposition and application of the Decalogue.