Matthew's Gospel is the most significant Jewish-Christian document of the New Testament. Ulrich Luz both outlines and elucidates the story told in the Gospel, emphasizing its focal points: the Sermon on the Mount, the miracles, the renunciation of possessions, and particularly the theology of judgment by works, an idea that represents both a challenge, in its quest for a church set apart from non-Christians by deeds alone, and a burden, through its traumatic origin in the breach between Matthew's community and the Israelite majority.