Page History

...

(1) By "the activity of Jesus," or "Jesus in action," which Marxsen uses as, in effect, a synonym for "the event of Jesus" (cf. 16, 27, 28), he evidently means something that is as distinct from Jesus' "deeds and behavior" (or "conduct") as it is from his "word(s)" (28, 29). Therefore, it would appear to be functionally equivalent to what Bultmann means by the "that" of Jesus (or of Jesus' word) or his "person," and which he, of course, takes to be decisive for understanding the origins of christology. – -- Interestingly, Marxsen makes what appears to be essentially the same distinction in "Jesus hat viele Namen," when he distinguishes "das Auftreten Jesu" from "das Reden und Tun Jesu," the first functioning equivalently to "the activity of Jesus" in this later essay.

...