(Isa. 51:17)
Because of wickedness, the ancient Jews were scattered and taken captive to Babylon. Later, some Jews returned to Jerusalem and rebuilt the temple. Unfortunately, this Jewish community also became wicked, and most of their descendants rejected Christ when he lived on earth. Because of their iniquities, they suffered great destruction, another scattering, and the hatred of men. (See 2 Ne. 6:10–11; 10:3–6.) But punishment, dispersion, and persecution are not to be their permanent condition. The Lord will bless, gather, and protect them as they return to the Lord, especially after they accept him as their Messiah (2 Ne. 6:11; 10:7–9)… . In these verses, Isaiah speaks of the time when the covenants of the Lord are fulfilled and the Jews are brought back home again through their righteousness.
(Victor L. Ludlow, Isaiah: Prophet, Seer, and Poet [Salt Lake City: Deseret Book Co., 1982], 429–30.)