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Sunday, 18 January 2026

538) Rules for writing a Sefer Torah: Rabbinic innovation or reflection of an existing scribal tradition?

Introduction

This article—drawing extensively on the research of Professor Emanuel Tov, former Editor-in-Chief of the Dead Sea Scrolls Publication Project[1]—examines the rabbinic rules for writing a Sefer Torah. These laws are among the most detailed and revered in rabbinic literature. Every letter, margin, and column is prescribed with precision, creating the impression of a system wholly devised by the rabbis to safeguard the sanctity of the text. Yet the discovery of the Dead Sea Scrolls has complicated this picture. As Emanuel Tov has shown, many of these rabbinic instructions echo standard and common practices already in use among scribes in the Judean Desert centuries earlier. Thus, what previously may have seemed like a unique rabbinic innovation in scribal law now appears, at least in part, to be the codification of an existing scribal traditionif not a form of acculturation.[2] 

Descriptive evidence and prescriptive laws

The Dead Sea Scrolls, discovered from 1947 in the Judean Desert, date from roughly the third century BCE to the first century CE. They provide physical, historical, and descriptive evidence of a wide-ranging Jewish scribal tradition during the Second Temple period. These manuscripts—nearly 900 texts represented by thousands of fragments—predate the rabbinic (Mishnaic) period, which began in the early first century CE. 

By contrast, rabbinic sources developed prescriptive laws governing the writing of Torah scrolls, Tefillin, and Mezuzot, emphasising uniformity, sanctity, and ritual precision. Without the discovery of the Dead Sea Scrolls, scholars might have assumed that the rabbis invented the intricate rules of sacred writing. However, the scrolls demonstrate that a diverse and popular scribal culture had already existed for centuries, with variations in orthography, layout, and textual divisions.

The post-rabbinic standardisation process

The Second Temple period was anything but standard in terms of Hebrew literary conventions. Before the rabbinic period, there was a wide variety of spelling options that revolved around matters like the plene (maleh, מלא) and defective (chaser, חסר). For example, the name David was alternately spelt as both דויד or דוד. The rabbis set about to standardise these types of variations. 

The forms of the Hebrew letters also experienced wide discrepancies, often bordering on decorative and even experimental. To this day, there are still different writing styles, but they all fall within a very tight and controlled rubric. 

The earlier scrolls often exhibited frequent and visible corrections, erasures, and notes in the margins. These were deemed unacceptable from the rabbinic era of the first century CE and onwards. 

The earlier scrolls did not seem to require ritual purity on the part of the scribe, something that was emphasised from the rabbinic period. 

The rabbis required a scroll to be covered by a Mitpachat (m. Kil. 9.3, m. Kelim 28.4)

or Mapah (Tos. Meg. 2.8). They discussed the composition of the ink (b. Shabb. 23a; 104b). The Scroll of Ester had to be written on parchment and in Assyrian (square) script (m. Meg. 2.2). Torah scrolls had to be written only in Hebrew (or ancient Greek). No damaged letters are acceptable. According to the Talmud Yerushalmi (y. Meg. 1.71b–72a), Torah scrolls can have a frequency of mistakes corresponding to two or three mistakes per column. The Talmud Bavli, however, demands absolute perfection (b. Menachot 29a). The lines in Torah scrolls are ruled with a reed (b. Meg. 16b), and stitching of the sections of parchment must be with sinews. In terms of spacing, the width of a line should be left between lines. The width of a letter had to separate between words. Between letters some space should be left, and a thumb-width should separate the columns. There must be four lines between each of the five books of the Torah. Torah scrolls must have two bars at both sides, and the books of the Prophets only require one at the end. 

Harmonising traditional and historical-critical approaches

Within rabbinic tradition, the Halachot (laws) governing the writing of sacred texts are typically understood as part of an unbroken chain of transmission reaching back to Sinai. Rabbinic sources present these laws as confirmations of ancient practices, divinely revealed and faithfully preserved across generations. From this theological standpoint, the scribal regulations are not innovations but continuations of a primordial covenant. The discovery of the Dead Sea Scrolls, however, offers a historical-critical lens that situates rabbinic prescriptions within the broader diversity of Second Temple scribal culture. 

The scrolls provide evidence of Torah literature one thousand years older than previously known. Before the discovery of the Dead Sea Scrolls, the earliest complete Hebrew manuscripts of the Torah were the Masoretic Text codices, such as the Aleppo Codex (tenth century CE) and the Leningrad Codex (1008 CE). 

However, the Dead Sea Scrolls reveal a wide range of stylistic conventions, textual divisions, and scribal techniques. They show both continuity (many readings match the later Masoretic tradition) and diversity (other readings align with the Septuagint or Samaritan Pentateuch). 

This suggests that rabbinic authorities were responding to this plurality by codifying and standardising practices. Thus, while tradition emphasises continuity with Sinai, the scrolls highlight adaptation and regulation in response to lived scribal realities. Taken together, these perspectives enrich our understanding of rabbinic law as both a theological affirmation of ancient revelation and a historical process of textual standardisation. Essentially, the rabbis were trying to standardise the variations in style, spelling, chapter divisions and spacing found in previous scribal traditions, particularly in the Second Temple period. 

Rabbinic scribal laws: Innovation or standardisation?

However, in light of the relatively recent discoveries of the Dead Sea Scrolls, we may now ask: Were rabbinic scribal laws of the first and second centuries genuine innovations introduced by the rabbis, or were they instead efforts to standardise and regulate already existing scribal practices—those of the Second Temple period, “sacred and nonsacred” (Tov 2025:577), and perhaps even broader traditions beyond Judaism? Historically, the effort to standardise Jewish practice is understandable, for after the destruction of the Second Temple in 70 CE, the rabbis undertook a deliberate campaign to impose uniformity and foster communal unity, while simultaneously asserting and consolidating their authority—an authority that had previously been vested in the Temple priesthood. Standardising how Torah scrolls were written was part of this broader project of centralising authority. While the technical rules (spelling, margins, ink, parchment, etc.) often reflected existing traditions, the innovation lay in codifying them as binding Halacha, thereby elevating regular scribal practice into a matter of religious law. 

Tov points out that, ironically, very little of the rabbinic scribal tradition was even rabbinic: 

“Most details mentioned in the Mishnah and Talmudim are known from the Dead Sea Scrolls, and therefore the tradition of book-making as reflected in rabbinic literature reflects well the realia of the earlier periods” (Tov 2025:567). 

Furthermore, it seems that the rabbis sought to identify and preserve common writing conventions, effectively codifying: 

“the practices employed by the average scribe of a Dead Sea scroll” (Tov 2025:567). 

Considering that the Dead Sea Scrolls comprise a vast spectrum of texts—“some precise and others not” (Tov 2025:571)—the rabbinic effort to impose uniform scribal standards for holy texts becomes all the more remarkable. The Scrolls demonstrate that Second Temple Judaism tolerated a wide range of textual practices, from highly meticulous copying to more fluid and inconsistent approaches. What is interesting is not merely the technical detail of these rules, but the transformation of ordinary scribal conventions into binding Halachic requirements. This leads to the striking conclusion that the complex writing protocols codified by the rabbis for the most sacred of texts were not inherently ‘holy’: 

“[T]here is nothing sacred about the procedures described in rabbinic literature but, due to the strictness of the rules described in that literature, the impression is created that these prescriptions were invented exclusively for preparing Scripture scrolls, tefillin, and Mezuzot” (Tov 2025:567). 

Fascinatingly, it is only within the last eighty years—since the discovery of the Dead Sea Scrolls—that such a conclusion has become possible: 

“Had the Dead Sea Scrolls not been found, we might have considered many of the instructions of rabbinic literature to be the brainchildren of the rabbis, invented for the preparation and writing of Torah scrolls. However, we now know better” (Tov 2025:577). 

Conclusion

The Dead Sea Scrolls have dramatically reshaped our understanding of Torah texts. On the one hand they produced Torah texts a thousand years older than our previous historical record had offered. On the other hand they contextualised the nature of rabbinic law relating to the writing of sacred texts. What once appeared to be a unique rabbinic innovation now emerges as a project of standardisation, rooted in earlier traditions but redefined to serve the needs of a post-Temple Jewish community. The Dead Sea Scrolls were a turning point, allowing us to see rabbinic scribal laws not as isolated inventions but as part of a broader continuum of a Jewish (and perhaps general) scribal culture. The rabbis were, therefore, both heirs to and reformers of the scribal traditions they inherited, transforming diversity into standardisation in the service of communal cohesion and rabbinic authority in the immediate aftermath of the fall of the Second Temple.



[1] Tov, E., 2025, ‘Scribal Practices Mentioned in Rabbinic Sources Compared with the Judean Desert Scrolls’, in Missing Pieces: Essays in Honour of Eibert J.C. Tigchelaar, STDJ 152, 560–78.

[2] Acculturation is defined as adapting to dominant cultural influences without compromising essential distinctiveness. Acculturation is thus very different from assimilation.

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