The Great Isaiah Scroll

What was found

In late 1946 or early 1947, Bedouin shepherds exploring a cave above the Dead Sea opened a clay jar and found ancient leather scrolls inside, among them a nearly intact copy of Isaiah -- now catalogued as 1QIsaa, the Great Isaiah Scroll. Sewn from 17 sheets of parchment into 54 columns, it runs 7.34 meters and preserves all 66 chapters of the book, with only minor damage. Before this discovery, the oldest complete Hebrew Isaiah manuscripts were medieval codices from around AD 1000; the scroll pushed that evidence back over a thousand years.

A date fixed by independent methods

Three separate radiocarbon tests -- Libby (1963), Zurich (1991), and Tucson (1994-95) -- placed the parchment in the 3rd-to-1st century BC, with the two more recent AMS tests converging closely. Independently of the radiocarbon work, paleographers dated the scroll's Hasmonaean-style script to about 125 BC on the basis of letterform development. In 2021, a machine-learning handwriting study (Popovic, Dhali & Schomaker, PLoS One) identified two distinct scribal hands copying the scroll's two halves, a forensic finding consistent with, and adding further texture to, the same dating window. Three methods, done independently of each other and of the biblical text itself, converge on a single answer: this copy of Isaiah was made in the 2nd-to-1st century BC.

What the wording shows

The scroll's Hebrew text of the passages Christians read as messianic -- the child of 7:14 (rendered in the Douay-Rheims and Vulgate as "a virgin shall conceive," virgo concipiet), the "Mighty God" and "Prince of Peace" of 9:6, and the suffering servant of chapter 53 -- already stands in essentially the form used in Bibles today. Its differences from the medieval Masoretic Text are almost entirely matters of spelling and grammar rather than sense. That wording, dated by the methods above, was circulating over a century before Jesus was born.

Why that matters

The scroll rules out, as a matter of physical evidence, any claim that Isaiah's messianic wording was inserted or reworded by Christian scribes after the first century AD -- the text was already fixed generations before Christianity existed. The Church has long read that wording typologically, a reading grounded in the pre-Christian Greek Septuagint's rendering of Isaiah 7:14's "almah" as parthenos (virgin), a translation choice the apostolic and patristic writers -- Justin Martyr and Irenaeus among them -- built on directly. The Great Isaiah Scroll confirms that the Hebrew words underlying that reading were not a later Christian invention.

Keep digging

• Israel Museum, Digital Dead Sea Scrolls -- Great Isaiah Scroll viewer -- http://dss.collections.imj.org.il/isaiah
• Leon Levy Dead Sea Scrolls Digital Library -- https://www.deadseascrolls.org.il/
• Popovic, Dhali & Schomaker, AI-based writer identification of the Great Isaiah Scroll, PLoS One (2021) -- https://pmc.ncbi.nlm.nih.gov/articles/PMC8059865/
• Magisterium AI -- https://www.magisterium.com
• BibleHub, Isaiah 7:14 parallel translations -- https://biblehub.com/isaiah/7-14.htm