According to John Welch, Nephi's prophetic view foresaw the future in four distinct stages, and each time he quoted a section from Isaiah it was because it contained words relevant to one of those stages. . . .
The last four chapters of 1 Nephi (1 Nephi 19-22) deal with the future of Nephi's people in their new land of promise. Their topics follow in order the same four stages found in 1 Nephi 11-14. These four stages of the Nephite prophetic view are:
1. Christ's coming;
2. his rejection and the scattering of the Jews;
3. the day of the Gentiles; and
4. the restoration of Israel and the ultimate victory of good over evil.
[John W. Welch, "Getting through Isaiah with the Help of the Nephite Prophetic View," in Isaiah in the Book of Mormon, pp. 24-26]