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Bonhoeffer´s academic work is neglected in Bonhoeffer scholarship. In this study, J.I. de Keijzer aims to contribute to a better understanding of Bonhoeffer by examining the intellectual roots of his "Act and Being," a notoriously inaccessible book, but one crucially important for grasping Bonhoeffer´s theology. The author begins with an examination of Bonhoeffer´s dialogue with Barth to find out how both theologians interacted with Luther´s "theologia crucis." The conclusion that Bonhoeffer deviates significantly from Barth´s theological trajectory leads to another discussion in "Act and Being," this time with Heidegger. J.I. de Keijzer shows how Bonhoeffer borrows from Heidegger´s ontology to articulate an alternative "theologia crucis" that is characterized by a greater fidelity to Luther and a theological method that brings Christology, epistemology, hermeneutics, ecclesiology, and ethics together.

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de Keijzer, J.I.
Born 1965; BA in Biblical Studies at the Evangelische Theologische Faculteit, Heverlee; MA in Christian Thought at Bethel Seminary, St. Paul, USA; PhD from Luther Seminary, St. Paul, USA; currently an independent scholar interested in the intersections of cross theology, radical theology, public theology, and social justice.

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