Act and Being
Bonhoeffer's 1930 habilitation 'Akt und Sein' — transcendental philosophy and ontology in the theology of revelation
Tradition: Reformed dialectical theology / Lutheran phenomenology / philosophical theology
Bonhoeffer's 1930 habilitation — transcendental philosophy and ontology in the theology of revelation
Bonhoeffer's 1930 Berlin habilitation thesis (defended in February 1930 and published 1931 by Bertelsmann as 'Akt und Sein: Transzendentalphilosophie und Ontologie in der systematischen Theologie'), is his most philosophically demanding work. Composed at twenty-four under Reinhold Seeberg's supervision, the book engages Heidegger's Being and Time (1927, then very recent), Husserlian phenomenology, the Marburg neo-Kantians (Cohen, Natorp), and Karl Barth's dialectical theology, asking whether 'act' (the Barthian moment of revelation, in which God breaks into human consciousness from outside) or 'being' (the ontological structure of the human-before-God) is the proper category for theological anthropology. Bonhoeffer rejects both pure-act theology (which makes the human a mere occasion for divine action) and pure-being theology (which collapses revelation into the human's own ontological resources). His mediating proposal — 'being-in-Christ' as the ontological category that sustains the actuality of revelation — draws on the Lutheran doctrine of justification and on the early Heidegger's existential-ontological analysis. The book is the chief source for Bonhoeffer's early philosophical-theological position and the conceptual ground of his later 'Christology' and 'Discipleship'.
Author
Editions cited
- Akt und Sein: Transzendentalphilosophie und Ontologie in der systematischen Theologie (Bertelsmann, Gütersloh, 1931)
- Dietrich Bonhoeffer Werke vol. 2, ed. Hans-Richard Reuter (Christian Kaiser Verlag, 1988)
- English trans. Bernard Noble, Act and Being (Collins, 1962; Harper Torchbooks reissue)
- Revised trans. H. Martin Rumscheidt, Act and Being: Transcendental Philosophy and Ontology in Systematic Theology (Bonhoeffer Works vol. 2, Fortress, 1996)
- Commentary: Charles Marsh, Reclaiming Dietrich Bonhoeffer (Oxford, 1994); Wayne Floyd, Theology and the Dialectics of Otherness: On Reading Bonhoeffer and Adorno (Lanham, 1988)
School Embodiments
Early-Bonhoeffer engagement with Barthian dialectical theology.
"Act and being — the Barthian moment of revelation against the ontological structure." (Act and Being, ch. A)
Sustained engagement with Husserl and Heidegger.
"Heidegger's Being and Time as the principal contemporary interlocutor." (Act and Being, ch. B)
Confessional-Christian theological framework.
"Theology of revelation as the framework." (Act and Being)
Lutheran-confessional methodological background.
"The Lutheran doctrine of justification as the theological centre." (Act and Being)
Existential-anthropological register.
"The human before God as the locus of theology." (Act and Being)
Major philosophy-of-religion work.
"Philosophical-theological method for the theology of revelation." (Act and Being, methodological introduction)
Neo-orthodox tradition.
Internal Tensions
Bonhoeffer's most philosophically demanding early work; the principal source for his early position. Read alongside the 1927 doctoral dissertation 'Sanctorum Communio', Act and Being completes the philosophical-theological foundations on which the later 'Discipleship' (1937), 'Ethics' (posthumous), and 'Letters and Papers from Prison' (posthumous) are built.
I. Time
1929-30 composition; February 1930 habilitation defence; 1931 publication. Bonhoeffer was twenty-four at the defence — the youngest habilitand of his generation at Berlin.
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II. Space
Berlin — Friedrich-Wilhelms-Universität (today Humboldt). The intellectual space is the Berlin systematic-theological faculty at the height of its early-twentieth-century renown, with Heidegger's Being and Time only three years old.
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III. Matter
Habilitation thesis. Form is academic-systematic: introduction setting up the act/being problem, then two main parts (act-theologies, being-theologies) with subdivisions, then Bonhoeffer's mediating proposal.
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IV. Observer
Early Bonhoeffer. The observer is the philosophical theologian positioned between Barthian dialectical-act theology and Husserlian-Heideggerian phenomenological-ontological analysis.
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V. Energy
Early-philosophical-theological energies. The book is the most philosophically intricate Bonhoeffer ever wrote and the seedbed of his subsequent more pastoral-Christological work.
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VI. Information
Single dense academic monograph. The book's argument is sustained across ~200 pages of close engagement with then-contemporary philosophical theology.
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How Act and Being resolves each dilemma
48 resolved positions across 4 dimensions · 9 unaligned.
Each dimension is sorted so minority positions come first. Mainstream positions are folded into an expandable list.