D&C 128:19 · Isaiah 52:7
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Nine words open both identically. The divergences are consistent with each other: the prophecy's singular 'him that bringeth' is plural throughout here, 'good tidings' is 'glad tidings', and the prophecy's four parallel clauses are cut to two. 'How beautiful upon the mountains' stands at exactly four distinct frozen verses in the corpus: Isaiah 52:7, Mosiah 12:21, 3 Nephi 20:40, and this verse - and the two Book of Mormon carriers both keep the prophecy's singular, which makes this verse the only one of the four to read it plural. Counts are of distinct frozen verses in the corpus, derived by search at the time of writing.