At the conclusion of his introduction (p. lxxiii), Skinner summarizes what he considers the critical consensus regarding the authorship, structure, and literary development of the book of Isaiah: "The book bearing Isaiah's
name is in reality a collection of prophetic oracles, showing a composite authorship, and completed literary history. Approximately two-thirds of it consists of anonymous prophecies, all of which are of an age subsequent to Isaiah. To this class belongs the whole of the latter part of the book after chapters 4off., but even within chapters 1-39 great diversity of authorship
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