Knowra Book of Isaiah Book of Isaiah The Book of Isaiah is a prophetic book of the Hebrew Bible containing oracles, poems, and narratives associated with Isaiah and later prophetic tradition. Its three major sections reflect different historical settings and literary layers.
Isaiah 1–39 : The first major section of Isaiah, containing judgment oracles, narratives, and promises of restoration. This section centers on Judah and Jerusalem amid the eighth-century BCE Assyrian crisis.
Isaiah of Jerusalem : An eighth-century BCE prophet in Jerusalem whose oracles are associated with the earliest material in Isaiah. His activity under Assyrian pressure anchors the book’s opening historical setting.
Septuagint : The ancient Greek translation of Jewish scriptures, produced in stages before and during the early Roman period. Its Greek wording shaped how Isaiah was read by Greek-speaking Jewish and Christian communities.
Single-author theory of Isaiah : The view that the Book of Isaiah derives substantially from the eighth-century prophet Isaiah of Jerusalem. It contrasts with models that assign major sections to later prophetic voices or historical settings.
Isaiah 40–55 : The section of Isaiah that announces comfort and return from Babylonian exile. Its voice and historical horizon shift toward exiles awaiting release from Babylon.
Neo-Assyrian Empire : An ancient Near Eastern empire that dominated the region during the eighth and seventh centuries BCE. Assyria’s expansion shapes many threats and political choices addressed in Isaiah 1–39.
Dead Sea Scrolls : A collection of ancient Jewish manuscripts discovered near the Dead Sea, including early biblical copies. The Great Isaiah Scroll preserves nearly the whole book and illuminates its textual transmission.
Multiple authorship of Isaiah : The scholarly view that major portions of Isaiah were composed or shaped by different writers across centuries. It accounts for changes in setting, language, and emphasis across the book’s three major sections.
Isaiah 56–66 : The final major section of Isaiah, addressing restoration, worship, justice, and communal life. These chapters imagine rebuilding and reform after the return from exile.
Babylonian captivity : The period when many Judeans were deported to Babylonia after Jerusalem’s conquest in 586 BCE. The exile supplies the setting for Isaiah 40–55’s promises of comfort and return.
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