The Torah and the Old Testament overlap but differ in scope: the Torah is the first five books of the Hebrew Bible — Genesis through Deuteronomy — while the Old Testament is the Christian name for a larger collection that includes those five books plus the historical, poetic, and prophetic writings that follow them.
That difference in scope is only the beginning. Five overlapping terms circulate around these ancient texts — Torah, Pentateuch, Tanakh, Hebrew Bible, and Old Testament — and each one signals a tradition, a canon, and a set of interpretive priorities. Which word a person reaches for often reveals where they are standing before they say anything else.
Five Terms, One Overlapping Library
The vocabulary can feel tangled because the terms cover different amounts of ground and come from different communities. This table lays out what each one means, whose term it is, and exactly what it covers.
| Term | Language & origin | Whose term | What it covers |
|---|---|---|---|
| Torah | Hebrew, “instruction” | Jewish tradition | The first five books (Genesis–Deuteronomy); broadly, the whole body of Jewish teaching, written and oral |
| Pentateuch | Greek, “five scrolls” | Christian & academic usage | The same first five books, viewed as five documents |
| Tanakh | Hebrew acronym (T-N-K) | Jewish tradition | The entire Jewish Bible — Torah, Nevi’im, Ketuvim — counted as 24 books |
| Hebrew Bible | Modern academic label | Scholars seeking neutral terms | The books shared by Judaism and Protestant Christianity, named for their original language |
| Old Testament | Latin/Greek, “old covenant” | Christian tradition | The first part of the Christian Bible — 39 books (Protestant), 46 (Catholic), or more (Orthodox) |
Two of these terms — Torah and Pentateuch — point to precisely the same five books. The other three describe collections of much larger and varying scope. The rest of this article works through those relationships, starting with the pair that overlap completely.
Torah vs Pentateuch: Same Five Books, Different Framing
Torah and Pentateuch name the identical five books — Genesis, Exodus, Leviticus, Numbers, and Deuteronomy — but they come from different languages and carry different assumptions about what the text is for.
The Hebrew word Torah derives from the root y-r-h, which carries the sense of instruction, guidance, or direction. It emphasizes what the text does: it teaches. Pentateuch comes from the Greek pentateuchos, literally “five scrolls” or “five vessels.” It emphasizes what the text is: five documents, each once occupying its own scroll.
The Greek term entered circulation through the early church. Origen (3rd century CE) used pentateuchos to describe the five books of Moses in their physical format — five containers of text in total. The Septuagint, the Greek translation of the Hebrew Bible produced in the 3rd-2nd centuries BCE, gave these books the Greek names that became standard in Christian tradition: Genesis (origin), Exodus (departure), Leviticus (pertaining to Levites), Numbers (from the census lists), and Deuteronomy (second law). These replaced the Hebrew naming convention, which identifies each book by its opening word — Bereshit, Shemot, Vayikra, Bamidbar, Devarim.
In modern academic biblical studies, “Pentateuch” is the default term when the five books are discussed as a literary and historical artifact. “Torah” appears when the discussion moves into Jewish religious context. Both are correct; the choice signals the framework the writer is working within.
Behind either name lies a composition history that neither label conveys on its own. Julius Wellhausen synthesized earlier source-critical work into the Documentary Hypothesis in his Prolegomena to the History of Israel (1878), proposing four main sources — J, E, D, and P — woven together by later editors across several centuries. Whether the five-part division was original or a later editorial decision is itself a scholarly question: Martin Noth argued in 1943 that Deuteronomy originally belonged with the books that follow it (Joshua through Kings), which would make the grouping of Deuteronomy with Genesis through Numbers a deliberate move that created the Torah as a distinct unit. For how those authorial seams surface in the text — the two creation accounts, the interleaved flood narrative — see Who Wrote Genesis?, and for the five books as a set, the first five books of the Bible.
What “Torah” Means — and How Far the Term Reaches
The common English translation of Torah as “law” captures only part of the word’s range. Torah encompasses narrative, genealogy, poetry, ritual instruction, and legal codes — not just commandments.
In its narrowest usage, Torah refers to the five books traditionally attributed to Moses. These contain the narrative arc from creation through the death of Moses, along with extensive legal collections: the Covenant Code (Exodus 20-23), the Holiness Code (Leviticus 17-26), the Priestly legislation across much of Leviticus and Numbers, and the Deuteronomic law code (Deuteronomy 12-26).
Within Judaism, the Torah holds a position no other part of the Tanakh occupies. Torah scrolls are handwritten on parchment by trained scribes (soferim), housed in decorated arks, and read publicly on an annual or triennial cycle that structures the liturgical calendar — completing the full five books and beginning again. The scholar James Kugel, in How to Read the Bible (2007), traces how the Torah gradually acquired this uniquely authoritative status in ancient Israelite religion, a process that was neither instantaneous nor inevitable.
But “Torah” also extends beyond these five books. The concept of Torah she-be’al peh (the Oral Torah) holds that Moses received not only the written text at Sinai but also an oral tradition of interpretation, eventually codified in the Mishnah (around 200 CE) and elaborated in the Talmud (around 500 CE). In this broadest sense, “Torah” can encompass the entire body of Jewish religious instruction — written and oral, biblical and rabbinic. This expansive meaning has no direct parallel in Christian usage of “Old Testament.”
What “Old Testament” Means — and What It Implies
“Old Testament” is a Christian designation for the first major division of the Christian Bible, distinguished from the “New Testament” — the Gospels, letters, and other writings centered on Jesus and the early church. The word “testament” translates the Latin testamentum, itself a rendering of the Greek diatheke (covenant).
“Old Testament” thus means “old covenant” — a theological label that implies a relationship to a “new covenant” established through Jesus.
The term encodes a Christian interpretive framework: the writings of Israel constitute a prior dispensation that the Christian tradition reads in light of what follows. Jewish tradition does not describe its own texts as “old” anything. Within Judaism, the Tanakh stands as a complete collection, not a prelude. Scholars in academic settings often prefer “Hebrew Bible” or “Tanakh” to sidestep either tradition’s built-in framing — though even these carry their own implications, since “Hebrew Bible” quietly excludes the Aramaic portions of Daniel and Ezra.
The scope of the Old Testament depends on which Christian tradition defines it. The Protestant Old Testament contains 39 books. The Catholic Old Testament adds seven — Tobit, Judith, 1-2 Maccabees, Wisdom of Solomon, Sirach (Ecclesiasticus), and Baruch, plus additions to Esther and Daniel — which Catholics call deuterocanonical and Protestants call apocryphal. The Ethiopian Orthodox tradition includes still more, such as 1 Enoch and Jubilees. There is no single “Old Testament”; the collection expands and contracts depending on the tradition.
Same Texts, Different Architecture
The most consequential difference between the Tanakh and the Christian Old Testament lies not in content but in arrangement. They contain the same textual material, though they count the books differently — 24 in the Tanakh, 39 in the Protestant Old Testament — because the Jewish tradition combines several books the Christian tradition separates (1-2 Samuel becomes one book, 1-2 Kings becomes one, and the twelve Minor Prophets are counted as a single Book of the Twelve).
The Tanakh organizes its 24 books into three divisions:
Torah (Teaching): Genesis, Exodus, Leviticus, Numbers, Deuteronomy.
Nevi’im (Prophets): Joshua, Judges, Samuel, Kings (the Former Prophets), then Isaiah, Jeremiah, Ezekiel, and the Twelve (the Latter Prophets).
Ketuvim (Writings): Psalms, Proverbs, Job, the Five Scrolls (Song of Songs, Ruth, Lamentations, Ecclesiastes, Esther), Daniel, Ezra-Nehemiah, Chronicles.
The last book of the Tanakh is 2 Chronicles, and its final verses describe the Persian king Cyrus permitting the Jewish exiles to return to Jerusalem and rebuild the temple (2 Chronicles 36:22-23). The Jewish Bible closes with restoration — a return to the land, a rebuilding of what was destroyed.
The Christian Old Testament rearranges these same books into four sections: Pentateuch, Historical Books, Poetry and Wisdom, and Prophets. The critical editorial move is placing the prophets last. The Protestant Old Testament ends with Malachi, whose final chapter speaks of God sending the prophet Elijah “before the great and dreadful day of the LORD” (Malachi 4:5). In the Christian reading tradition, this becomes a bridge to the New Testament — Elijah is identified with John the Baptist (Matthew 11:14), and the prophetic voice that closes the collection points forward to the arrival of Jesus.
Roger Beckwith, in The Old Testament Canon of the New Testament Church (1985), traced how this rearrangement served early Christian interpretive purposes. Brevard Childs, in Introduction to the Old Testament as Scripture (1979), explored how canonical arrangement itself functions as a form of interpretation — the same texts, placed in a different sequence, generate different theological meanings.
The Tanakh ends with return. The Christian Old Testament ends with expectation.
How Canon Shapes Reading
The difference between “Torah” and “Old Testament” operates on two levels at once: scope and framing.
On scope, the Torah is five books. The Old Testament is 39 (Protestant), 46 (Catholic), or more (Orthodox). The Torah sits inside the Old Testament as its foundational core, but the Old Testament reaches far beyond it — into the historical narratives of Joshua through Kings, the poetry of Psalms and Proverbs, the wisdom literature of Job and Ecclesiastes, and the prophetic collections from Isaiah through Malachi.
On framing, the terms signal different reading traditions. When someone says “Torah,” they are typically speaking from within, or in reference to, the Jewish tradition — where these five books hold unique authority and the broader Tanakh represents a complete, self-contained collection. When someone says “Old Testament,” they are speaking from within, or in reference to, the Christian tradition — where these texts form the first part of a two-part Bible that reads toward the New Testament.
The practical consequence is that the same passage can function differently depending on which collection frames it. Isaiah 7:14 — “a young woman shall conceive and bear a son” — sits within the Tanakh as part of the prophet Isaiah’s message to King Ahaz during the Syro-Ephraimite crisis of the 8th century BCE. Within the Christian Old Testament, the same verse is read through the lens of Matthew 1:23, where it becomes a prophecy of the virgin birth of Jesus. The Hebrew word almah (“young woman”) was rendered as parthenos (“virgin”) in the Septuagint, and that translation choice shaped centuries of Christian interpretation. The text is the same. The canonical architecture around it shapes what it seems to say.
This is part of what makes the broader study of the Abrahamic religions so textually rich — traditions that share source material can produce strikingly different readings from that shared base, and the differences are often baked into the structure of their respective canons rather than residing in the texts themselves.
The Texts Between the Traditions
The boundary between the Tanakh and the various Christian Old Testaments raises a further question about the texts that fall between traditions — the books some canons include and others exclude.
The deuterocanonical books occupy a revealing middle ground. Texts like Wisdom of Solomon, Sirach, and 1-2 Maccabees were composed in the Hellenistic period (roughly 332-63 BCE) and circulated widely in Greek-speaking Jewish communities. They appear in the Septuagint, which became the primary biblical text of the early church. When the Catholic and Orthodox canons include these books, they follow the broader Septuagint tradition; when the Protestant and Jewish canons exclude them, they follow a narrower definition of the canon that solidified later. The deuterocanonical books sit exactly on this fault line.
The same texts, included in one canon and excluded from another, sharpen the underlying question: who decides what counts? Canonization was neither sudden nor unanimous — it unfolded over centuries, shaped by communal practice, theological debate, and institutional authority. The Quran’s relationship to these texts adds another layer, engaging some of the same shared material from a position of independent revelation rather than canonical continuity.
Reading Across the Boundary
The words we use for these collections — Torah, Pentateuch, Tanakh, Hebrew Bible, Old Testament — carry assumptions about which reading tradition we are standing in, even when we do not intend them to. Each term maps onto a tradition, a canon, and a set of interpretive priorities.
The Torah is five books that function as the foundational layer of Jewish life and learning. The Pentateuch is those same five books, examined as historical documents. The Tanakh arranges its books to end with restoration. The Christian Old Testament arranges the same books to end with anticipation. The textual content they share is extensive — and the frameworks each tradition builds around that shared content are distinct.
Knowing which word you are holding, and why, is the practical doorway into a much larger set of questions about how the same ancient writings came to serve different communities. Uncanon presents these texts in their compositional context — with scholarly notes on when each was composed, who scholars think wrote it, and what was happening historically when it took shape — so the background is already in place before you read a single line, and the conclusions you draw remain your own.