And now behold, my beloved brethren, I would speak unto you; for I, Nephi, would not suffer that ye should suppose that ye are more righteous than the Gentiles shall be. For behold, except ye shall keep the commandments of God ye shall all likewise perish; and because of the words which have been spoken ye need not suppose that the Gentiles are utterly destroyed.
For behold, I say unto you that as many of the Gentiles as will repent are the covenant people of the Lord; and as many of the Jews as will not repent shall be cast off; for the Lord covenanteth with none save it be with them that repent and believe in his Son, who is the Holy One of Israel.
I’ve mentioned before that a key theme of the Book of Mormon – including 2 Nephi 25-30 – is the restoration of Israel and conversely judgment upon the Gentiles who have oppressed them. Yet these verses help correct any misapprehension we may have of that: Israel will be restored, collectively. On an individual scale, however, it is personal repentance and faith that make the difference. We will not be saved based on who our ancestors were, nor on what our nationality is, nor on nominal membership of the Church; we cannot be complacent and think everything is okay because we belong to the “right” group. We are all going to be held accountable, for God is just. Likewise He mercifully extends his salvation to all, on the same conditions.