What does the underlined statement mean exactly?
https://www.churchofjesuschrist.org/study/liahona/2020/04/the-future-of-the-church-preparing-the-world-for-the-saviors-second-coming?lang=eng
"The Book of Mormon declares the doctrine of the gathering (see, for example, 1 Nephi 10:14).
It causes people to learn about Jesus Christ, to believe His gospel, and to join His Church. In fact, if there were no Book of Mormon, the promised gathering of Israel would not occur."
During our Catholic upbringing, my wife and I also believe the Bible too causes people to learn about
Jesus Christ, to believe His gospel, and to join His Church. As for the underlined statement above,
I found these links showing many biblical passages which discuss the gathering and/or grafting.
Hope you can provide clarity.
https://bible.knowing-jesus.com/topics/Gathering-Israel http://www.bibleresearch.org/prophecybook2/b2w18.html https://www.gotquestions.org/olive-tree-Bible.html https://www.gotquestions.org/all-Israel-saved.html https://www.gotquestions.org/Israel-church.html http://www.evidenceunseen.com/articles/prophecy/the-regathering-of-israel/ https://endtimestruth.com/israel/the-regathering-of-israel/ https://int.icej.org/susans-blog/what-does-bible-have-say-about-return-jews-their-homeland https://www.bibletools.org/index.cfm/fuseaction/Topical.show/RTD/CGG/ID/3683/Regathering-of-Israel.htm http://doctorwoodhead.com/israel-the-barometer-of-bible-prophecy-and-their-the-re-gathering-2/
Jonah