Determining the original language of the brass plates presents a tantalizing riddle, one that has defied numerous attempts to solve it. This riddle contains several relevant clues, each suggesting a certain linguistic background for the plates of brass. Two of the most important clues occur in Mosiah 1:2—4and Mormon 9:32—33. A third clue derives from modern attempts to understand how the block quotations from Isaiah and Malachi fit linguistically in the Book of Mormon record. While these three pieces of the larger puzzle can be arranged and rearranged to achieve various solutions to this riddle, there is one piece of evidence that has yet to be considered in detail. The Book of Mormon is replete with echoes of, allusions to, and direct quotations of scripture—a veritable treasure trove for the text critic. One such brief scriptural echo, which upon closer examination turns out to be a direct quotation, provides compelling information that in turn suggests a Hebrew origin for at least a portion of the brass plates. This biblical tie is found in Alma 7:11, which is a direct quotation of Isaiah 53:4.
From Journal of Book of Mormon Studies: Volume - 14, Issue - 1, Pages: 98-103
Provo, Utah: Maxwell Institute, 2005