John Tvedtnes writes that in comparing the Isaiah text from the King James Bible with the Book of Mormon, we find that while in Isaiah 51:19 we find the words "two things," the comparable verse in 2 Nephi 8:19 reads "two sons." The Massoretic Text simply has stym, the feminine numeral "two." Thus it is possible to admit that the original read "sons." In the following verse (2 Nephi 8:20), after the phrase, "Thy sons have fainted," the Book of Mormon adds "save these two." The reference seems to be to the "two sons" (instead of the KJV's "two things"). The Book of Mormon critics might jump on this as Joseph Smith's tampering with Isaiah's words. However, it is also possible that the changes made in this and other verses of Jacob's discourse can be attributed to Jacob, who is quoting these passages in his discourse. We have already sen how much he paraphrased earlier portions of Isaiah during the same speech [see the Tvedtnes commentary on 2 Nephi 6-8]. [John A. Tvedtnes, "The Isaiah Variants in the Book of Mormon," FARMS, pp. 87-88]