Book of Isaiah in Wikipedia
The Book of Isaiah (Hebrew: ספר ישעיה) is a book of the Bible
traditionally attributed to the Prophet Isaiah, who lived in
the second half of the 8th century BC. In the first 39
chapters, Isaiah prophesies doom for a sinful Judah and for
all the nations of the world that oppose God. The last 27
chapters prophesy the restoration of the nation of Israel.
This section includes the Songs of the Suffering Servant, four
separate passages that Christians believe prefigure the coming
of Jesus Christ, and which are otherwise traditionally thought
to refer to the nation of Israel. This second of the book's
two major sections also includes prophecies of a new creation
in God's glorious future kingdom.
There is considerable debate about the dating of the text; one
widely accepted critical hypothesis suggests that much if not
most of the text was not written in the 8th century BC.
Tradition ascribes the Book of Isaiah to a single author,
Isaiah himself. Modern scholarship suggests the text has two
or three authors. This later author or authors, and their work
or works, are known as Deutero- or Second Isaiah and Trito- or
Third Isaiah respectively...