From Marvin Sweeney’s recent Tanak: A Theological and Critical Introduction to the Jewish Bible:
“The task of a Jewish biblical theology cannot be the same as that of a Christian Old Testament theology or a Christian biblical theology. Fundamentally, Judaism is committed to a relationship with Gd as defined throug divine Torah whereas Christianity is committed to the notion that its relationship with G-d is defined through Jesus Christ. Because fo their differing characters, the Bible is formed and read differently within the respective contexts of Judaism and Christianity, and those differences must be taken into account when undertaking Jewish (or Christian) biblical theology” (20).
And concluding the first chapter:
“In sum, a Jewish biblical theology must engage the text fo the Bible firsthand, grappling with the interpretation of the Hebrew and Aramaic text; discerning the diachronic dimensions of its literary form, compositional history, generic and linguistic features, communicative features, socio-historical setting, and the potential intentions of its authors; and grappling with the synchronic dimensions again of its literary coherence, plot and character development, and its intertextual relationships. A Jewish biblical theology therefore points to the foundations for an ongoing dialog concerning the identity and character of G-d, the Jewish people, the world of creation, the nations at large, and their interrelations with each other. It is on the basis of this dialog begun in the Bible that Judaism is formed” (35-36).
While I don’t find the litany of modes and approaches Sweeney outlines that constitute Jewish biblical theology to be in any way distinctive of Jewish biblical theology (countless OT theologies do precisely these things), his insistence throughout this introductory chapter that Jewish biblical theology must engage post-biblical Jewish sources is an important and rich insight. (For a beautiful example of this in practice, see Benjamin Sommer, “Dialogical Biblical Theology: A Jewish Approach to Reading Scripture Theologically” in Biblical Theology: Introducing the Conversation, ed. Perdue, Morgan, Sommer [Nashville: Abingdon, 2009]). Not incidentally, the idea of the dialogic reality of the Hebrew Bible is a vitally important observation, one in which several Christian Old Testament theologians have rightly picked up on, perhaps most notably Walter Brueggemann.