What we have as the Book of Isaiah is the work of two different prophets, one before the exile and one after. The second of these, who is called by Biblical students Deutero-Isaiah, is the most remarkable of the prophets. He is the first who reports the Lord as saying “There is no god but I.” He believes in the resurrection of the body, perhaps as a result of Persian influence. His prophecies of the Messiah were, later, the chief Old Testament texts used to show that the prophets foresaw the coming of Christ.
