Deutero-Isaiah's work, which comprises Isaiah chapters 40-55, has exerted its influence on testimonies of faith in both Jewish and Christian tradition down to the present day. "Who is the Servant of God?" is not a question confined to the New Testament alone. The work aims to establish accord between adherents of the Jacob/Israel tradition vs. the Zion/Jerusalem tradition--the background being the tensions between the exiles, the diaspora, and the people who had remained in the land.