A while ago I started a series on this matter. I was rather perturbed by the heat it generated and decided to do some more thinking before I continued. I have hardly made it a matter of obsessive research, but I am a little more informed now, thanks to input from a Messianic Jewish friend. He pointed me to this book that I commend to readers looking for a different perspective than that offered here: Future Israel: Why Christian Anti-judaism Must Be Challenged (New American Commentary Studies in Bible & Theology) by Barry E. Horner.
While my basic position still remains unchanged (though I think it has changed with regard to Rom 9-11 – before I was very Wrightian, though probably less so today), I would no longer focus on the hermeneutical practice of the early church as the decisive critique of Christian Zionism – at least as developed in my previous posts. The early church was flexible in its hermeneutical procedure, sometimes christocentric, other times employing slightly different accents. I suspect that some of Sizer's and Motyer's claims need to be re-formulated in light of Horner's critique – though certainly not abandoned. The 'christological hermeneutic' card should still play a part in constructive critique of Christian Zionism, but I would focus more now on the narrative trajectory of scripture, and how the prophetic promises were understood by Christ as fulfilled in his ministry and hence laid the groundwork for NT theology generally, as developed especially by Paul. This wider scope of analysis includes the specific hermeneutical practices of the early church within it, as a moment within this, applied to various concrete situations. But more decisive is the significance of the relation between Christ and the prophetic traditions. Horner claims that Motyer et.al do not take the OT scripture seriously. However, I suspect it is Horner who does not take the scriptural narrative seriously enough in making sense of Christ, his mission and his aims – and how these were understood by the early church.
Of course, all of these comments are mere assertions without justification. I will perhaps return to this subject when I return from SBL and detail my developing thoughts in a podcast. As ever, if you feel strongly critical of my views then do let me know. I will keep an open mind on these matters for a while to come yet!