Nephi, Isaiah, Christ and other prophets foretold that in the last days, Israel would be gathered again. The gentiles may also be numbered with the house of Israel if they repent and come unto Christ. Jesus Christ says "a commandment I give unto you that ye search these things diligently; for great are the words of Isaiah. For surely he spake as touching all things concerning my people which are of the house of Israel." For scriptures and notes, go to https://doctrineofchrist.com/gathering-of-israel-by-end-time-servant/