“When the Two Nations Shall Run Together”

Joseph F. McConkie, Robert L. Millet
In speaking to Nephi of “two nations,” the Lord may well have in mind the tribal nations of ancient days. The great thrust of the Old Testament record is the eventual reunion of Judah and Ephraim (see Isaiah 11:11-16; Jeremiah 31-32; Ezekiel 37:15-28). Just as the descendants of these ancient sons of Jacob shall be reunited, even so shall their scriptural records grow together (see 2 Nephi 3:12).

Doctrinal Commentary on the Book of Mormon, Vol. 1