2 Nephi 30:1

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.

I, Nephi, want to speak to you, my dear brothers. Don’t think you are better than the people who aren’t Jews. If you don’t obey God’s commandments, you will all die just like they will. And because of the words I have spoken, you should not think that these other people will be completely destroyed.

Listen, my friends: I need to tell you something. Don’t think you’re more righteous than the Gentiles will be. If you don’t keep God’s commandments, you’ll fall just like they will. And don’t assume the Gentiles will be wiped out forever.