David Bryant's groundbreaking work of decades ago, called In the Gap, has matured into one of the most important works about practical Christianity ever crafted. His exegesis of Ezekiel 22:30 goes so deep and so broad that one can forget that the whole work is exegetical in its foundation though it is pure and sweet praxis in its exploration. Stand in the Gap is the best answer I've found yet to the question "Why am I still here on earth after I am saved?" It is complicated and deep, because so is its subject matter: shallow pithy brevity would be giving a starving man a carrot stick. Bryant's feast invites, even requires, a lot of coming back for 'seconds'. The small-group questions tied to each chapter are a great help: i.e. actually study this book with a small group of folks ready to hold each other accountable to acting on what God shows you through it. I use it as a textbook in a class I teach about having a heart for God in a lost and hapless world.
Anyone who has ever looked for meaning in life: here it is. There is work for us to do. There is a role we must play. There is a purpose for each of us. Yours can be found right here, "in the Gap."
In a word, this book is... indispensable.