Isaiah and the Book of Mormon Prophecies

Whenever Book of Mormon prophets prophesy anything of the future, the end-time, it's always taken from Isaiah. Even Jesus himself, instead of giving his own spiel and prophecies, starts quoting Isaiah and other prophets. That has to tell us something, right? Now let's make that our priority as well. And then we'll be in good shape. We'll know why the Lord requires it of us.