Why were Isaiah’s writings important to the Jewish community at Qumran?

The writings of the Book of Isaiah were highly significant to the Jewish community at Qumran for several key reasons:

• Expectation of Redemption: By the 1st century BCE, it had become common to interpret prophetic texts as speaking not only to the prophet's own time but also to future events. During periods of stress, members of the Qumran community studied these texts with the specific intent of discerning when redemption would arrive.1
• Belief in Scriptural Foreshadowing: The community held a strong belief that Scripture foretold the history of their own times. This perspective allowed them to relate prophetic passages directly to their sect, their struggles, and their specific historical circumstances.2
• Presence in the Library: The importance of the text is evidenced by the discovery of an Isaiah Scroll among the Dead Sea Scrolls, as well as sectarian commentaries on the book. These documents served as a vital part of the community's library, which they used to navigate their theological and social identity.32