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What do those who believe ´have´ when they ´have faith´? What traces does the experience of faith leave in the believer´s existence? And can theologians assure that their studies will genuinely have something to do with ´the wholly Other´? Dietrich Bonhoeffer (1906-1945), operating within the framework of Karl Barth´s (1886-1968) theology, addressed those questions in order to complete this framework. The ensuing dialogue between those great theologians affords us a deeper insight in fundamental concepts such as ´revelation´, ´faith´, ´christological concentration´, ´analogy´, ´church´ and ´discipleship´. In this study, Edward van ´t Slot reads this dialogue with regard to both its historical and its theological significance. He shows what Bonhoeffer means when he attacks Barth´s ´positivism of revelation´, and compares it with Barth´s earlier ´negativism of revelation´.

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