Zahl seeks to the correct the tendency of Protestant theology, as seen in such figures as Karl Barth and Martin Luther, to eschew recognition of experience in theologically significant. Pushing against the extreme of Schleiermacher who made experience the criterion for theology, Zahl argues that experience is inescapable and, as such, is an unavoidable part of our theological efforts. Yet, despite this fact, many theologians fail to fully integrate experience into their theologies, resulting in an abstract and ambiguous theology that is not 'practically recognizable.'
Having established the methodological importance of experience, he moves on to offer an account which integrates experience in salvation and sanctification, vindicating on the way the classical understanding of justification by faith alone as expressed by Philip Melanchthon. Here, he draws from affect theory and persuasively argues that our affections are vital for and a necessary location for articulated a theology that recognizes our embodied reality. In my view, this is a very important work as it provides a sophisticated entrance into the much needed discussion of the role of Christian experience in theology and as such it is essential reading for anyone interested in the task of theology.