In sum, it would be difficult to characterize Alexander's interpretation of Isaiah as a struggle to understand it as Christian scripture. For him, no real struggle is evident; he simply assumes without debate that the Old and New Testament form a unity that points to the salvation of the church according to
the promise and fulfillment in Jesus Christ. Most of his energy, however, is used in a vigorous apologetic defense of this tradition against the theologians, largely German, in the period from the late eighteenth century to the mid-nineteenth.
