While it is not possible to explore these in any detail here, it is necessary that we sketch an outline of the leading ideas in the book to serve as a guide to those who wish to explore those ideas further. The thought of Isaiah can be organized under four heads: God, Humanity and the World, Sin, Redemption. Of necessity these topics overlap somewhat, but wherever possible this overlap will be minimized. Before looking at these individual headings it would be well to make one general comment: Isaiah
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