At this point the Savior was filled with such a spirit of rapture as he contemplated the glory of the latter days that he poured out Isaiah's song of victory, which Isaiah recorded in chapter 54 of his writings.
As Israel is gathered in the latter days she will comprise such a vast multitude that the hosts of these tribes will be greater than at any time in their history. This will be particularly true as the lost tribes pour forth out of the north.