The Gathering of Scattered Israel

Doctrines relating to the scattering and gathering of the house of Israel are among the earliest lessons taught in the Book of Mormon: “After the house of Israel should be scattered they should be gathered together again; … the natural branches of the olive-tree, or the remnants of the house of Israel, should be grafted in, or come to the knowledge of the true Messiah, their Lord and their …

https://www.churchofjesuschrist.org/study/liahona/2006/11/the-gathering-of-scattered-israel?lang=eng