Jeremiah 18 - 23

Like many prophets before, Jeremiah was also blessed with a vision of the gathering of Israel in last days. The Lord tells him -

"I will gather the remnant of my flock out of all countries whither I have driven them, and will bring them again to their folds; and they shall be fruitful and increase.
4 And I will set up shepherds over them which shall feed them: and they shall fear no more, nor be dismayed, neither shall they be lacking, saith the LORD." (Old Testament Jeremiah 23:3 - 4)

How will he do this -

"...Behold, I will send for many fishers, saith the LORD, and they shall fish them; and after will I send for many hunters, and they shall hunt them from every mountain, and from every hill, and out of the holes of the rocks." (Old Testament Jeremiah 16:16)

The prophet Joseph Smith taught -

"We believe in the literal gathering of Israel and in the restoration of the Ten Tribes..." (Pearl of Great Price Articles of Faith 1:10)

The Lord said to Jeremiah -

"Behold, the days come, saith the LORD, that I will raise unto David a righteous Branch, and a King shall reign and prosper, and shall execute judgment and justice in the earth.
6 In his days Judah shall be saved, and Israel shall dwell safely: and this is his name whereby he shall be called, THE LORD OUR RIGHTEOUSNESS.
7 Therefore, behold, the days come, saith the LORD, that they shall no more say, The LORD liveth, which brought up the children of Israel out of the land of Egypt;
8 But, The LORD liveth, which brought up and which led the seed of the house of Israel out of the north country, and from all countries whither I had driven them; and they shall dwell in their own land." (Old Testament Jeremiah 23:5 - 8)

Elder Bruce R. McConkie taught -

“The gathering of Israel consists of receiving the truth, gaining again a true knowledge of the Redeemer, and coming back into the true fold of the Good Shepherd. In the language of the Book of Mormon, it consists of being ‘restored to the true church and fold of God,’ and then being ‘gathered’ and ‘established’ in various ‘lands of promise. " (2 Ne. 9:2.)” (“Come: Let Israel Build Zion,” Ensign, May 1977, p. 117.)

Of this conversion and gathering, President Spencer W. Kimball said -

“It is to be done by missionary work. It is your responsibility to attend to this missionary work.” (In Conference Report, Sao Paulo Brazil Area Conference, Feb.–Mar. 1975, p. 73.)