Book of Mormon Central: KnoWhy

What Do Nephi and Isaiah Say about the End Times? (1x46)

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Several prophets have described the events that will transpire in the last days. But in Nephi’s world, the prophet who had spoken most similarly to his vision of that future day was Isaiah. So, Nephi unsurprisingly, through careful selection off material from Isaiah, used him as a second witness, attesting that in the end the Lord will prevail, the righteous will be rewarded, and the wicked will be destroyed.