The Syriac reads as the Book of Mormon suggests. And it shall come to pass in that day,' which is without support in the Hebrew. The Septuagint and Syriac both read the same as the Book of Mormon. These variants find support in other Biblical texts and cannot be explained by slavish copying of the King James Version nor by random guesswork from Joseph Smith. It seems plausible that Joseph was translating an authentic ancient source which had relationships to other ancient sources.
Some questions remain, of course.
In several cases, for example, King James language is used that some scholars now say stems from old translation errors. In the Sermon on the Mount, for example, one critic has identified 11 places where the King James version may be in error, based on comparison with recently discovered ancient manuscripts, and where the Book of Mormon allegedly preserves the error. John Welch carefully considers these challenges in his book, The Sermon at the Temple and the Sermon on the Mount , pp. In no case is it clear that the Book of Mormon translation is actually incorrect. The differences are so minor as to really make no serious difference in meaning.