Who Wrote Leviticus? (And When Was It Written?)

Written by Marko Marina, Ph.D.
Author | Historian
Author | Historian | BE Contributor
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Date written: January 16th, 2025
Disclaimer: The views and opinions expressed in this article belong to the author and do not necessarily match my own. - Dr. Bart D. Ehrman
Who wrote Leviticus? The first time I encountered the Book of Leviticus was in my high school religion class.
Our teacher, a devout Catholic, sparked a heated discussion about homosexuality and the Catholic Church’s stance on it. Inevitably, the conversation turned to questions of sin, morality, and Leviticus. She quoted Leviticus 18:22: “You shall not lie with a man as one does with a woman. It is an abomination.”
When I questioned whether this verse should be read within its historical context, she firmly upheld a literal interpretation, concluding that the Bible clearly condemns homosexuality. That class left a lasting impression, not because of the debate, but because it was my first introduction to the complexities of biblical texts.
Years later, as I explored the composition and authorship of the Bible more deeply, Leviticus emerged as a text that demanded further investigation.
Leviticus is one of the most perplexing books in the Bible. Known for its intricate laws and rituals, it’s often viewed as a challenging read, even for devout believers. Despite this, it holds profound significance for understanding the ancient Israelite worldview and their relationship with God.
But who wrote the book of Leviticus and when was it written? In this article, we’ll delve into the origins of Leviticus, examining its content, its traditional attribution, and the critical scholarship that has reshaped our understanding of this ancient text.
Finally, by exploring who wrote Leviticus, we hope to shed light on the rich and layered history behind this foundational book of the Bible.
If you’re fascinated by the complexities of biblical texts like Leviticus, don’t miss Dr. Bart D. Ehrman’s online course “Finding Moses: What Scholars Know About the Exodus and Jewish Law.”
Explore famous stories such as Cain and Abel, Noah’s flood, and the 7-day creation. Are these accounts history, myth, or something in between? Discover how critical scholarship approaches these timeless narratives and enrich your understanding of the Bible’s earliest chapters.

The Book of Leviticus: A Brief Summary
Before we get into the “Who wrote Leviticus?” question, it’s essential to understand what the Book of Leviticus is about. Scholars often divide the book into three thematic sections: the sacrificial system, the manual of impurities, and the Day of Atonement.
Each one provides valuable insight into the religious practices and worldview of ancient Israel, with a particular emphasis on holiness, ritual purity, and the relationship between humanity and God.
The first section, which spans chapters 1 through 7, deals with the sacrificial system as it was (at least in theory) practiced in the Jerusalem Temple. Sacrifices in Leviticus fall into five categories. The first, introduced in Chapter 1, is “the burnt offering or whole offering” (Hebrew: “olah”), in which the entire sacrifice is burned as a pleasing aroma to God.
Chapter 2 introduces the “grain offering” (“minhah”), which could take various forms, such as baked or ground grains, and remains significant in Judaism today as the name for afternoon prayers. In chapter 3, we encounter the “shalom offering,” often translated as the “peace offering” or “communion sacrifice,” symbolizing thanksgiving or fellowship with God.
The “sin offering” or “purification offering” (chapter 4) and the “guilt offering” or “reparation offering” (chapter 5) address unintentional sins, providing a means for atonement and reconciliation. Notably, intentional sins are only addressed later in the ritual for the Day of Atonement.
Chapters 6 and 7 further elaborate on these sacrificial instructions, detailing the roles and responsibilities of the priests in performing the rituals and specifying how the portions of certain offerings are to be distributed between the priests and the altar.
In his Commentary on Leviticus, Jacob Milgrom notes:
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The sacrificial instructions of chapters. 1-7 constitutes the first divine pronouncement from the newly erected sanctuary (Exod 40), a fact that underscores the paramount importance of the cult. From a more practical view, however, these prescriptive sacrificial procedures had to come first to make sense of the descriptive sacrificial procedures of the consecration that follow: the priesthood and the inauguration of the public cult (chapters 8-9).


The second section, known as the Manual of Impurities, spans chapters 10 to 15. This section explores the ancient concept of ritual purity, which differs significantly from moral or ethical purity. Impurity was seen as an aesthetic or ceremonial state rather than an inherently evil quality.
The Day of Atonement, or Yom Kippur, lies at the heart of Leviticus in chapters 16 and 17. “The Hebrew term,” J. R. Porter notes, “means literally ‘day of expiations’ and this well describes its character, for what we have in this chapter is a combination of a number of separate rites designed to secure the complete purity of the sanctuary and the nation.”
This solemn ritual represents a communal effort to atone for intentional sins and cleanse the sanctuary of impurities accumulated throughout the year. The high priest played a central role, performing elaborate rituals, including the symbolic transfer of sins onto a scapegoat released into the wilderness.
Taken as a whole, Leviticus presents a detailed framework for living by divine will, rooted in the cultural and religious practices of ancient Israel. In his article, Erich Zenger quotes the German scholar Martin Noth who explains the historical and cultural significance of Leviticus:
The book is one of those books of the Old Testament that are usually not read much. Understandably; for it is predominantly concerned with cultic matters and that in a way that seems quite monotonous. But if one looks more closely, something of the living diversity and historical development of the essence of the religious rites in ancient Israel can be seen precisely in this book; and in ancient Israel, the cultic religious service was one of life’s central elements. (translation by Erich Zenger)


Understanding themes and the significance of Leviticus provides an important context as we continue with our exploration into the "Who wrote Leviticus?" question. Let's begin by presenting traditional theory rooted in the religious beliefs of both Judaism and Christianity.
Who Wrote Leviticus in the Bible? Traditional Attribution
The authorship of Leviticus is inseparable from the broader question concerning the composition of the Pentateuch — the first five books of the Torah. For centuries, Jewish tradition has firmly held that Moses wrote the entire Pentateuch, including Leviticus.
According to the same tradition, he lived during the 13th or 15th century B.C.E. and was closely associated with the famous parting of the Red Sea.
This belief became a cornerstone of Jewish and Christian religions, rooted in tradition and perpetuated through scriptural interpretations. But who really wrote Leviticus? Exploring this question reveals a fascinating interplay between faith, tradition, and scholarly inquiry.
The first point to note is the lack of internal evidence supporting Mosaic authorship. The Book of Leviticus itself never claims to be written by Moses. Joel Baden, in his book The Composition of the Pentateuch, succinctly explains:
The Pentateuch itself makes no claim for Mosaic authorship; the tradition that Moses wrote the five books was both an unintentional by-product of inner-biblical developments and an intentionally articulated article of faith for both Jewish and Christian religious groups.


This absence of explicit attribution raises questions about how and why Moses became credited as the author of Leviticus.
In Judaism, the attribution to Moses is deeply embedded in rabbinic tradition, which emerged in the late antique period. The Talmud, for instance, asserts that Moses wrote not only the Pentateuch but also other portions of scripture, stating: “Moses wrote his book and the Balaam pericope and Job. Joshua wrote his book and eight verses of the Torah.”
These eight verses, from Deuteronomy 34:5-12, describe Moses’ death and burial — an obvious challenge to Mosaic authorship. Yet, for centuries, this explanation sufficed to uphold the attribution, blending faith with creative interpretative flexibility.
For early Christians, Moses' authorship was equally important. Seeing Jesus as the fulfillment of the Mosaic law, the Church embraced the belief that Moses had written the Pentateuch. This view dominated throughout the Middle Ages, with only a few dissenting voices raising questions about inconsistencies.
Church Fathers such as Jerome noted anomalies within the text, and the Jewish commentator Ibn Ezra observed potential later additions to the Pentateuch. However, these observations were largely seen as minor quirks that didn’t undermine the overall framework of Mosaic authorship.
The Renaissance and Enlightenment marked a turning point. As scholars began to emphasize reason and textual analysis, the traditional attribution to Moses started to crumble. One of the earliest critics of Mosaic authorship was the Catholic theologian and textual critic Richard Simon.
In his Histoire critique du Vieux Testament (Critical History of the Old Testament) Simon noted:
I know that one can offer responses to most of these passages and to a few others that it would be unnecessary to present; but with even a little reflection on these responses, one will find them more subtle than true. I do not believe it is necessary, or even prudent, to resort to such evasions, since the most learned Fathers have freely admitted that the Pentateuch, at least in the form it exists today, might not be attributed entirely to Moses.


The Catholic Church was, predictably, less than thrilled. In an act of impressive zeal, they destroyed over 1,300 copies of Simon’s work, proving that challenging tradition could come at a high cost — even in the form of a metaphorical bonfire.
Despite the Church’s efforts to suppress Simon’s ideas, a Pandora’s box had been opened. Enlightenment scholars, with their focus on critical thinking and textual analysis, found the traditional attribution increasingly difficult to sustain.
Today, only conservative (evangelical) scholars hold to the traditional attribution of Leviticus. Roland Kenneth Harrison, for instance, asserts:
The most logical conclusion concerning authorship and date would be to recognize the antiquity and authenticity of Leviticus and to regard it as a genuine second-millennium BC literary product compiled by Moses, with the probable assistance of priestly scribes.


However, most critical scholars, including R. Norman Whybray, reject the notion that Moses directly authored the Pentateuch, including Leviticus. But if Moses wasn’t the author, who wrote Leviticus? And what evidence has led scholars to this conclusion? These questions lead us into the next chapter of our exploration.
Who Wrote Leviticus? Scholarly Insights
The lack of internal evidence for Mosaic authorship of Leviticus shouldn’t surprise us. As German scholar Erhard S. Gerstenberger notes in Das dritte Buch Mose: Leviticus (The Third Book of Moses: Leviticus)
Old Testament writings rarely include the names of their actual authors. At the time, there was no concept of intellectual property protected by copyright. All texts—whether transmitted orally or in writing—were intended for practical use, not for placement on bookshelves or in archives. Nevertheless, following our modern cultural habits, we desire to know more about the authors and transmitters of these works. A text without a clear intellectual owner is like a stray dog: little respected and regarded with suspicion.


This cultural shift leaves us asking, who wrote Leviticus? If not Moses, then who is, in Gerstenberger’s words, the “intellectual owner” of this text?
One of the most influential frameworks for addressing this question is the Documentary Hypothesis, pioneered by Julius Wellhausen in the 19th century. Wellhausen proposed that the Pentateuch, including Leviticus, is a composite text derived from four distinct sources: the Yahwist (J), the Elohist (E), the Deuteronomist (D), and the Priestly source (P).
According to this hypothesis, these sources were compiled over centuries by multiple authors and editors, each contributing unique terminology, theology, and narrative styles. Leviticus is primarily attributed to the Priestly source, characterized by its detailed focus on rituals, laws, and the role of the priesthood.
Several arguments support the Documentary Hypothesis. For instance, the Pentateuch contains numerous “doublets” — stories or laws repeated with slight variations. These duplications suggest multiple versions of the same traditions woven together.
Contradictions within the text further reinforce the idea of composite authorship. For example, Leviticus 1:1 states that God called to Moses from the Tent of Meeting, a location associated with the period after the Sinaitic revelation. In contrast, other verses, such as Leviticus 7:37-38, 25:1, 26:46, and 27:34, explicitly attribute certain instructions to Sinai itself.
Baruch A. Levine, in his Commentary on Leviticus, emphasizes the theological and doctrinal stakes of these textual contradictions:
The Torah was revealed by the one divine shepherd to one prophet, Moses, and nothing stated in it should be construed as contradicting this doctrine. There can be no real differences among Exodus, Leviticus, Numbers, and Deuteronomy as to what each records or prescribes as law and commandment. Surely God would not contradict Himself. More consequentially – Moses’ transmission of God’s words was considered faithful and accurate.


Moreover, variations in terminology, such as the distinct uses of the divine names Yahweh and Elohim, reflect different theological perspectives among the sources. These discrepancies make it nearly impossible to attribute the Pentateuch, including Leviticus, to a single author.
Additionally, certain elements in Leviticus reflect historical realities that postdate the time of Moses. For example, the detailed sacrificial instructions and the centralized focus on the Temple suggest a context in which the Jerusalem Temple was already established as the religious center.
While the Documentary Hypothesis dismantled the notion of the Pentateuch as a unified work, it also undermined the historicity of its traditional author, Moses. The idea of a single, authoritative author gave way to a more complex picture of a text shaped by multiple hands across centuries.
As J. R. Porter explains:
Leviticus was not originally a separate and self-contained unity but formed part of a continuous whole comprising what are now the first five (or, more probably, the first four) books of the Old Testament. This great work is primarily a collection of a vast amount of material with very different dates and backgrounds, but it has been given a definite shape and arrangement by the priestly circles.


This conclusion reflects a growing scholarly consensus: Leviticus, like the rest of the Pentateuch, is a patchwork of sources rather than the product of one author.
More recently, some aspects of the classical Documentary Hypothesis have been challenged. Scholars like John Van Seters have argued for a later dating of the Yahwist (J) source, placing it in the 6th century B.C.E, during or after the Babylonian Exile. Van Seters notes:
I have suggested repeatedly in my analysis that J is a contemporary of Second Isaiah. Consequently, it is noteworthy that Second Isaiah compares the future return from exile as a second exodus, using some of the details that occur in J's account... If it is possible to get some sense of the environment of the exilic community in Babylon, I think it comes to us most poignantly through the works of J and Second Isaiah.


These revisions suggest that the composition of the Pentateuch may have been even more protracted and influenced by historical circumstances than Wellhausen initially proposed. However, these debates about nuances in dating and composition don’t revive the idea of Moses as the author.
Whatever complexities scholars uncover, one thing is clear: the traditional attribution of Leviticus to Moses has been almost universally rejected. The evidence for composite authorship is overwhelming, and the book is best understood as the product of priestly circles seeking to codify and preserve ritual practices over time.
So, who wrote Leviticus, and when was it written? The answer lies not with Moses, but with a tradition of priestly scribes, editors, and compilers who shaped the text over generations. When was the Book of Leviticus composed in the form we know today? According to Porter:
We may suggest, then, that the priestly work was later than Deuteronomy and Ezekiel, at a time when a restored community in the Promised Land was a practical possibility, perhaps even as early as the late sixth century B.C.E.


However, other scholars are more cautious. In his book The Introduction to the Pentateuch, R. Norman Whybray concludes:
There is at the present moment no consensus whatever about when, why, how, and through whom the Pentateuch reached its present form, and opinions about the dates of composition of its various parts differ by more than five hundred years.


Finally, Baruch A. Levine notes:
If there is any degree of consensus among modern critical scholars, who predictably disagree on many questions, it is in the judgment that the institutions legislated in the Torah and the concepts expressed in its historical narratives were promulgated centuries later than the age of Moses and, then, not all at the same time… The critical consensus is that the Torah as we have it is comprised of components, or 'sources,' and not merely of books. These sources use different language, reflect different historical periods, and express divergent points of view regarding early Israelite history and the biblical message as well. The key factor in the critical approach is development, and its most basic insight is the awareness of difference.



Conclusion
Looking back on my first encounter with the Book of Leviticus in high school, I now realize how much my understanding has evolved.
What seemed at the time like a straightforward text with immutable moral directives has revealed itself to be far more intricate and layered. The question “Who wrote Leviticus?” isn’t simply a matter of assigning a name to a book but an exploration into how ancient communities preserved, adapted, and transmitted their traditions.
Through our exploration, we have seen how traditional views, rooted in faith, attribute the authorship of Leviticus to Moses. Yet, critical scholarship has offered a more nuanced perspective, identifying the text as a composite work shaped by multiple authors and priestly circles over centuries.
While the exact details of who wrote Leviticus may never be fully resolved, the insights gained from both tradition and critical inquiry enrich our understanding of this foundational text and its place within the larger tapestry of the Pentateuch.
And yet, I can’t help but wish history were a little more forthcoming — offering us a signed scroll or a footnote or two. Alas, history often whispers when we want it to shout, leaving us to piece together its fragments with equal measures of curiosity and frustration. At times, I wonder if I should have chosen a different professional path. Well, maybe not!