On the Old Testament side, the Dead Sea Scrolls transformed the picture. Found near Qumran from 1947, they include the Great Isaiah Scroll, from about 125 BC — pushing the oldest Hebrew copies of Scripture roughly a thousand years earlier than anything scholars had before. Compared with the medieval text, the stability was remarkable, though far from perfect: the scrolls also reveal genuine variants and more than one version of some books circulating side by side.
- The Great Isaiah Scroll dates to ~125 BC — about 1,000 years older than the previous oldest Hebrew copies.
- Overall stability was high, but the scrolls also reveal genuine variants and multiple text-types.
What the evidence showsThe Hebrew text of books like Isaiah was copied with striking care across a thousand years — the medieval Bibles were not a late invention.
Where it stopsThe stability was strong but not total; the scrolls also show real textual variation and several text-types in circulation, not one frozen original.
Sources & further reading