Refuting “The Robe of Righteousness”: Evidence for a Distinct Isaiah Text in the Book of Mormon

Townsend’s Claims (Anachronism of Isaiah 2–14 and 40–66). Colby Townsend argues that it is “a historical problem” for Book of Mormon prophets to quote Isaiah chapters 40–66, since modern scholars date those chapters to the exile (after 600 BCE) – years after Lehi left Jerusalem. He extends this to note that Nephi’s quotations of Isaiah 2–14 “as they appear in the KJV” would be just as unlikely as including Isaiah 40–55. In effect, Townsend treats the Book of Mormon Isaiah passages as if they were verbatim blocks lifted from the King James Bible (with modern chapter divisions), implying Joseph Smith must have had access to the fully redacted Second and Third Isaiah.

Alternate View: Independent Isaiah Record. By contrast, believing scholarship and apologetic sources observe that Nephite prophets claimed to have Isaiah’s writings on their own plates (see 1 Ne. 19:23–24; 2 Ne. 25:1–2, for example) and that Nephi “wrote many things” from the brass plates (including Isaiah) in his own words. If the Book of Mormon translation was made from an ancient Isaiah text carried by the Nephites, then quoting Isaiah is not anachronistic – it is simply reading Isaiah’s prophecies from their original source. In this view, the English “slightly revised” phrasing is explained by the translation process, not by copying from the English Bible. Numerous LDS scholars have pointed out that the Isaiah passages in the Book of Mormon often deviate noticeably from the King James version (KJV), suggesting they were not copied from the KJV text at all. These deviations can instead be understood as an independent transmission (or revealed equivalent) of Isaiah’s words.

Textual Variants: A Non‑Aligned Isaiah Witness

A detailed textual comparison finds that the Book of Mormon’s Isaiah quotations differ from the KJV in many ways – often agreeing with other ancient witnesses, and sometimes showing completely unique readings. Carol Ellertson’s BYU thesis examined all 433 Book of Mormon verses drawn from Isaiah and found 216 verses (50%) contain one or more variants (370 total differences) from the KJV wording. These differences fall into distinct categories:

KJV italics: 119 of the differences correspond exactly to words that are italicized in the King James text, indicating English supplies rather than original Hebrew words.
Septuagint (LXX): 76 variants match the Greek Septuagint reading of Isaiah rather than the KJV/Hebrew reading.
Dead Sea Scrolls (1QIsaïa): 28 variants agree with the Great Isaiah Scroll from Qumran.
Masoretic Text: 52 variants agree with the traditional Masoretic (Hebrew) text.
Non-aligned (unique): The remaining 150 variants have no parallel in any known Isaiah manuscript; they appear to be unique to the Book of Mormon text (Ellertson calls these “non‑aligned” readings).

Taken together, this pattern suggests that the Book of Mormon Isaiah is not simply a corrupted copy of the KJV or Hebrew Isaiah, but a distinct textual tradition. Ellertson notes that under Emanuel Tov’s framework of textual criticism, the Book of Mormon Isaiah qualifies as an “independent” or “non-aligned” witness – exactly what one would expect if the Nephites preserved a separate Isaiah document. In other words, the Book of Mormon’s Isaiah text appears to stand apart from the known biblical “families,” which is most readily explained if it came from its own original autograph rather than being copied from the Bible.

Apologetic Scholarship: Translation from an Original Autograph

Several Latter-day Saint scholars have explicitly argued that these textual facts indicate the Book of Mormon is a translation of an authentic ancient record, not a modern compilation. For example, Wayne Ham (BYU) found that the Book of Mormon contains “unique phrasing and wording that differs from the King James Version,” even in the same passages of Isaiah. By comparing the Book of Mormon Isaiah with other ancient texts (e.g. the Septuagint and Dead Sea Scrolls), Ham concluded that the prophets’ usage reflects “a unique and distinct approach to interpretation” – consistent with translating a different original text, not plagiarizing the KJV.

Likewise, Sidney B. Sperry demonstrated in 1938 that the Book of Mormon’s use of Isaiah passages has a “unique and distinct approach to interpretation and application, and is consistent with a translation from another original autograph.” He showed that the wording and literary forms in the Book of Mormon fit the ancient Near Eastern context and purposes of the text (rather than the 17th-century KJV context). Sperry emphasized that the Nephite translator “followed [the Hebrew] text only in general, not specifically,” and plainly “had an independent knowledge of the Hebrew language and its idiom.” In Sperry’s view, the Isaiah passages in the Book of Mormon are adapted to serve Nephite needs (as he put it, “used in a way to fit the purposes and objectives of the book”) rather than simply copied. Most strikingly, Sperry notes there is “abundant evidence” that Book of Mormon prophets (the Nephites) “had an extensive knowledge of Hebrew culture, language, and literature.” This implies the Nephites could have preserved and rendered Isaiah’s teachings in their own records.

Gary Bishop’s 1974 thesis similarly argues that the Book of Mormon’s Isaiah shows deep familiarity with the original context and is best explained as a translation from a genuine antique text. Bishop points out unique names and terminology in the Book of Mormon that do not occur in the Bible or contemporary English writings, reinforcing that the Book of Mormon is “a distinct and original work” and not mere biblical plagiarism. All told, these studies conclude that the Book of Mormon’s Isaiah passages align with the idea of a separate autograph, not with Joseph Smith copying from a post-exilic redaction of Isaiah.

Nephites’ Knowledge of Hebrew and Scriptural Context

More generally, critics who see “anachronism” in the Book of Mormon often overlook the text’s own claims about Nephite literacy and scholarship. Sperry and others stress that the Nephites repeatedly demonstrate familiarity with Hebrew idioms and covenantal concepts. As noted, Sperry observes that the BOM translator clearly knew Hebrew idioms, and that Nephite prophets speak and write in terms that presuppose knowledge of Isaiah’s theology. For example, Nephi expressly states that Isaiah wrote his words on the brass plates (1 Ne. 19:23–24) so that his descendants would “know concerning the coming of the Messiah.” In other words, the Book of Mormon itself presents the Nephites as directly preserving Isaiah’s writings. If their record-keepers faithfully transmitted Isaiah, then having those chapters in the Nephite canon is not a problem at all but a direct result of that preservation.

In light of this, the claim that quoting Third Isaiah (chapters 56–66) or the early chapters of First Isaiah (2–14) is impossible for the Nephites rests on a flawed assumption: that they only had what the English KJV happened to contain. If instead the Nephites maintained Isaiah’s words on their own scriptures, then any differences are a feature of that separate source, not evidence of Joseph Smith borrowing from modern Bibles.

The Ellertson Thesis — 78 Variants That Point to a Separate Autograph

The most precise evidence against the plagiarism charge comes from a close analysis of Ellertson’s findings about how the Book of Mormon differs from the KJV. Of the 370 total variants she catalogued, 78 cases show the Book of Mormon agreeing with the Masoretic text (the ancient Hebrew) against the KJV — and 52 of those 78 are cases where the KJV had inserted italicized words that are not in the original Hebrew. When the Book of Mormon omits these italicized additions, it is not dropping words carelessly; it is restoring the poetic structure of the original Hebrew text.

This is the key point that critics of the “KJV plagiarism” theory consistently raise: the Book of Mormon does not deviate from the KJV randomly. It deviates in ways that are consistent with translation from a separate ancient Hebrew autograph — one that predates both the Masoretic tradition used as the basis for the KJV and the Dead Sea Scrolls text. Several specific examples illustrate the pattern:

BoM Matches Hebrew Against KJV — Selected Examples

Isaiah 9:7, 9:17, 10:11 — The Book of Mormon matches the original Hebrew where the KJV translates incorrectly or supplies words not in the Hebrew text.

2 Nephi 12:5–6 (Isaiah 2:5–6) — The Book of Mormon preserves antithetical parallelism (a paired contrast structure central to Hebrew poetry) that the KJV breaks by inserting an italicized phrase.

2 Nephi 12:9 (Isaiah 2:9) — The Book of Mormon preserves epistrophe (repetition of a phrase at the end of successive clauses) that the KJV disrupts.

2 Nephi 12:16 (Isaiah 2:16) — The Book of Mormon adds a line that restores a triadic poetic pattern (three parallel strophes) present in the Hebrew but absent from the KJV.

Beyond the Masoretic agreements, there are more than 20 additional cases where the Book of Mormon matches the Septuagint (the Greek translation of the Old Testament) against the Masoretic text. The significance of this is profound: it means the Book of Mormon’s source — the Brass Plates — was its own autograph, independent of both the Masoretic tradition and the Septuagint tradition, yet correlating with each at different points as an independent ancient witness.

The Brass Plates were compiled around 600 BC — the same general era from which the Qumran Isaiah Scroll derives (~400 BC or earlier). When the Dead Sea Scrolls were discovered in 1947, textual scholars were confronted with evidence that “there were several concurrent versions of the biblical text.” The Qumran discovery proved that the single Masoretic text we have today is not the only ancient Isaiah autograph that ever existed. The Brass Plates scenario is therefore not only theologically plausible — it is historically plausible in precisely the way that twentieth-century archaeology confirmed.

Chiasmus — The Hebrew Poetic Structure Joseph Smith Could Not Have Invented

Chiasmus (from the Greek letter chi, X) is a Hebrew literary device in which a passage mirrors itself in an inverted structure: A–B–C–B′–A′. It is a sophisticated literary form used throughout the Old Testament — but it was not recognized or discussed in Western scholarship until the mid–nineteenth century, after the Book of Mormon was already published. John W. Welch discovered chiasmus in the Book of Mormon in 1967, and subsequent analysis has identified numerous examples throughout the text, not only in the Isaiah passages.

What makes these structures significant is not merely their presence, but their complexity and precision. The chiastic structures in the Book of Mormon are:

Characteristics of Book of Mormon Chiasmus

Complex, not simple — Multi-level structures with six, seven, or more paired elements, not the trivial two-part inversions that can appear accidentally in any writing.

Theologically centered — The pivot point (center of the chiasm) in every major example is the most theologically significant statement — exactly as ancient Hebrew authors intended.

Consistent with Hebrew tradition — The structures match the conventions of biblical Hebrew poetry as identified by modern Old Testament scholars.

Distributed throughout the text — Found in narrative passages, sermons, and prophecy alike — not concentrated in the Isaiah quotations alone.

A classic example is Mosiah 3:18–19, which forms a seven-element chiasm with a precise theological center:

Mosiah 3:18–19 — Chiastic Structure

A humble themselves
  B become as little children
    C salvation through the atonement of Christ
      D the natural man is an enemy to God
        E and has been from the fall of Adam
        E′ and will be, forever and ever
      D′ unless he yields to the Holy Spirit
    C′ and becomes a saint through the atonement
  B′ and becomes as a child
A′ submissive, meek, humble

The center of the chiasm — “has been from the fall of Adam / and will be, forever and ever” — is the theological pivot point: the eternal scope of human fallen nature, which gives the atonement its necessity. This is not accidental. This is sophisticated Hebrew poetic construction in which the author places the most critical idea at the structural center precisely so the reader recognizes its weight.

Joseph Smith stated that he had “merely been instructed in reading and writing” and had no access to Hebrew scholarship. Western scholars did not systematically identify and analyze chiasmus as a biblical literary form until after the Book of Mormon was published. The presence of complex, accurate, theologically precise chiastic structures throughout the Book of Mormon is therefore evidence that the text originates from ancient Hebrew literary sources — not from an uneducated farmer in 1830 upstate New York composing prose that happened, repeatedly and consistently, to mirror a sophisticated ancient convention he could not have known.

The Three Autographs of Isaiah — Why the Plagiarism Charge Fails Textually

The plagiarism charge rests on a foundational assumption: that there is essentially one version of Isaiah’s text — the KJV — and that the Book of Mormon must have copied from it. But the textual history of Isaiah reveals that this assumption is false. Modern biblical scholarship now recognizes at least three distinct ancient autographs of Isaiah:

Three Ancient Isaiah Textual Traditions

Tradition 1 — Proto-Masoretic — The Jewish Hebrew text that became the Masoretic text (standardized ~100 AD), which was then translated into the Septuagint (Greek) and ultimately into the KJV via the Textus Receptus. This is the text most people assume is the “only” Isaiah.

Tradition 2 — Qumran Isaiah Scroll (1QIsaå) — Discovered in the Dead Sea Scrolls (1947), dating to approximately 400–100 BC. It contains hundreds of its own variants from the Masoretic text, confirming that multiple concurrent Isaiah autographs existed in antiquity.

Tradition 3 — The Brass Plates (~600 BC) — The source of the Book of Mormon’s Isaiah, compiled before either the Masoretic tradition was standardized or the Qumran scroll was copied. Independent of both, yet correlating with each at different points.

The Book of Mormon’s Isaiah passages exhibit precisely the pattern one would expect from Tradition 3:

Book of Mormon Isaiah Alignment Pattern

Matches Masoretic against KJV in 78 cases — Where the KJV’s italicized additions break the Hebrew poetic structure, the Book of Mormon restores it by following the Masoretic text.

Matches Septuagint against Masoretic in 20+ cases — Where the Masoretic text diverged from an earlier reading, the Book of Mormon aligns with the Septuagint’s source tradition.

150 unique variants matching neither — Readings that appear in no known manuscript tradition — exactly what a third, independent autograph would produce.

This is exactly what we would expect from a genuine ancient Hebrew document written around 600 BC — not what we would expect from plagiarism of the 1769 KJV. A forger copying the KJV would produce a text that overwhelmingly matches the KJV. Instead, the Book of Mormon produces a text that diverges from the KJV in patterns specifically consistent with having been translated from a distinct ancient source. The Dead Sea Scrolls discovery — which came over a century after the Book of Mormon was published — only strengthened this case by confirming that multiple Isaiah autographs did exist in the ancient world, and that the scenario the Book of Mormon presupposes (a separate written Isaiah tradition carried out of Jerusalem before 600 BC) is historically credible.

Conclusion: Independent Isaiah Tradition, Not Plagiarism

In sum, a broad range of textual and contextual evidence supports the conclusion that the Book of Mormon’s Isaiah passages derive from an independent ancient source. The sheer number of unique and variant readings (many of which match other ancient texts or are unattested elsewhere) is exactly what one would expect if the Book of Mormon were translating an original Isaiah manuscript carried by the Nephites. Apologetic scholars have long argued that these features – unique phrasing, Hebrew idioms, and purposeful adaptations of Isaiah – demonstrate that the Book of Mormon is “not simply a copy or plagiarism of the Bible, but rather a distinct and original work.” In that light, the patterns Townsend sees as “anachronistic” instead provide evidence of a distinct transmission or revealed version of Isaiah, rather than proof of literary dependence on a post-exilic redaction. The most plausible explanation for the Book of Mormon Isaiah material remains that it came from its own autograph – a Nephite copy (and translation) of Isaiah – rather than from copying the KJV text.

Sources: Critical and apologetic studies of the Book of Mormon’s Isaiah usage; Carol Ellertson, The Isaiah Passages in the Book of Mormon: A Non-Aligned Text (BYU MA thesis, 2001); Colby Townsend, “The Robe of Righteousness” (Dialogue, 2022); John W. Welch, “Chiasmus in the Book of Mormon” (BYU Studies, 1969).