According to Richardson, Richardson and Bentley, critics claim that Joseph Smith plagiarized some passages from the Bible, inserting them into the Book of Mormon. Yet a careful comparison of those Book of Mormon passages that are shared with the Bible shows that the Book of Mormon actually restores original text from the Bible and makes many clarification of Biblical wordings.
An example is found by a careful study of 2 Nephi 23:3 which reveals a much clearer translation of what was said in Isaiah 13:3. The Isaiah passage reads, "I have commanded my sanctified ones, I have also called my mighty ones, for mine anger, even them that rejoice in my highness." The Book of Mormon passage reads the same as Isaiah only to the word "anger." It clarifies the nonsense of the King James translation from the Masoretic text: "for mine anger is not upon them that rejoice in my highness. (For more information, see John A. Tvedtnes, A Sure Foundation, pp. 24-5; also in "Isaiah Variants in the Book of Mormon" in Isaiah and the Prophets) [Allen H. Richardson, David E. Richardson and Anthony E. Bentley, 1000 Evidences for the Church of Jesus Christ of Latter-day Saints: Part Two-A Voice from the Dust: 500 Evidences in Support of the Book of Mormon, pp. 20-21]