The Book of Isaiah is one of the major prophetic books of the Old Testament in the Bible. It contains prophecies concerning Judah and Jerusalem, the coming of the Messiah, and the future restoration of Israel. Isaiah is known for its poetic language and profound theological themes, offering messages of judgment, hope, and salvation.
the book of Isaiah is in the Dead Sea Scrolls and it is identical word for word.
""The Book of Isaiah was explicitly mentioned in the context of the Dead Sea Scrolls, noting its identical word-for-word consistency with later versions. This is a specific religious text that can be purchased."