The Dead Sea Scrolls מגילות מדבר יהודה

Before 1947 the oldest complete Hebrew Bible was the Aleppo Codex—the work of the Tiberian masoretes of the tenth century. The scrolls of the Judean Desert are a thousand years older.

What was found. In eleven caves at Qumran—hundreds of manuscripts: parts of the books of the Bible, apocrypha, commentaries, works on law, prayers, community rules, tefillin and mezuzot. Besides Qumran other sites in the Judean Desert yielded manuscripts: Wadi Murabba'at and Nahal Hever—documents from the time of Bar Kokhba, including letters; Wadi Daliyeh—Aramaic papyri of the Persian period; Masada—fragments of seven biblical scrolls.

What they showed about the text. Here precision is needed, because both extremes circulate more often than the truth. The Great Isaiah Scroll, dated to about 125 BCE, differs from the Masoretic text in more than two thousand six hundred places. But almost all the differences are spelling (full or defective), singular against plural, word order, scribal slips; all sixty-six chapters are there, and the content is the same. The conclusion drawn is exact and careful: across a thousand years of transmission the text held steady, and the masoretes' work fixed what was already there.

The converse should be added: not all the Qumran biblical manuscripts agree with one another—some are closer to other known versions. That is, in that age different copies circulated side by side, and one of them reached the masoretes.

And what they did not show. The writings of the Qumran community itself—its rule, its commentaries—are not part of Jewish tradition and never were: they are the books of a movement that vanished. Their value is historical, not legal.