This is a book that certainly knows what it wants to say and the implications, but it’s written with a balanced voice and an openness to multiple perspectives that is truly irenic. . . . Although it is subtitled “a study in the pneumatology of Robert Jenson,” the book is actually best read as a constructive contribution to pneumatology in its own right. It presents a powerful case for charitable “triangulating” theology, and reading it would bear fruit for anyone working on pneumatology or trinitarian theology. . . It will certainly be an important book for graduate students and academic theologians.