The Book of Mormon, 3 Nephi 20:30-31,33
30 And it shall come to pass that the time cometh, when the fulness of my gospel shall be preached unto them;
31 And they shall believe in me, that I am Jesus Christ …
33 Then will the Father gather them together again, and give unto them Jerusalem for the land of their inheritance.
Journal of Discourses, Orson Pratt 14:46
The whole of the twelve tribes of Israel are to return back to Palestine in Asia and rebuild their city of Jerusalem and a temple within that city before, and preparatory to the coming of the Lord. … It will stand while all the generations of the earth shall stand when the house of Israel shall return and rebuild it under the direction of the Almighty.