It seems to me that a determined argument for coherence entails at
least implicitly the recognition that the texts are ostensibly and
perhaps really ‘incoherent’.

I’m sure that in many circumstances that may be the case.  But I would add that "a determined argument for coherence" may also be predicated on a belief that coherence is found at some original source, some original narrative that present believers can tap into.  For instance, you say: "What I am asking is how does he make sense of Israel’s story in the light of his vocation and the concrete historical circumstances that he faced."

Something bothers me.  I think that it is the implicite presumption that it is even possible for you to understand how Jesus made "sense of Israel’s story in the light of his vocation.." 

Am I understanding that right?  Are you suggesting that how Jesus made sense of his situation can be searched out and discovered by us here in the present?  

We are both reacting against the reductionist modernist paradigm.
You resist it by opening up the possibilities for meaning and
interpretation, by advocating incoherence and a plurality of readings -
which, ironically, is basically what we have always had in the
Protestant tradition. I am more inclined to find the solution to the
problem in an alternative narrative-historical hermeneutic, because I
think that is the best way to preserve the ‘evangelical’ power of the
narrative for mission and worship and community. But it may be that
there is the potential for a rather powerful collaboration between
those two approaches once they have been properly understood. 

I would agree with much or your reading of the situation.  One major difference, I think, centers on your effort to find a "solution to the problem." I’m not so sure that there is a "solution to the problem" and I don’t presume that it is a problem that we humans have the capacity to solve, anyway.  We just have different interpretations.  Some of those interpretations we trust more than others.

Coherece certainly has its value.  But maybe coherence isn’t something we search out and discover, maybe coherence is something we fashion out of the narrative materials at hand.  And there is the big difference between our views.  I don’t think that how Jesus made sense of his situation is available for us here in the present to search out and find. 

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