Royal Skousen explains in detail the internal consistency of the original text of the Book of Mormon. He references several verses of the Book of Mormon to discuss five main points: consistency in meaning; systematic phraseology; variation in the text; conjectural emendation; and revising the text. By examining these five aspects, Skousen shows that neither the message nor the doctrine of the Book of Mormon loses credibility as a result of textual changes. Skousen also mentions that the consistency in the manuscripts suggests that Joseph Smith did not receive the text as a concept but rather received it word for word.
BYU ScholarsArchive Citation
"The Systematic Text of the Book of Mormon,"
Journal of Book of Mormon Studies: Vol. 11
, Article 8.
Available at: http://scholarsarchive.byu.edu/jbms/vol11/iss2/8