For whom or what does the church exist? That the entire world become Christian? I don’t think so. To answer this question, we must ask a prior question: for whom or what do the Jewish people exist? Franz Rosenzweig offered an answer in The Star of Redemption. My point here is that the question of ecclesiology requires Christians to answer the question about the Jewish people. Without reference to that prior question, ecclesiology is at best incomplete; at worst, defective.