In fact, the task
of the philosopher appears to me here to be distinguished from that
of the theologian, in the following manner: biblical
theology has the function
of developing the kerygma according to its own
conceptual system; it has the duty
of criticizing preaching, both by confronting it with its origin and by reorganizing it in a meaningful framework, in a discourse
of its own kind, corresponding to the internal coherence
of the kerygma itself.