Nephi continues in 2 Nephi 29 to speak the words of the Lord to us. Among other things, he prophesies that there will be much opposition to the Book of Mormon because Satan will have entrenched in the minds of people so thoroughly that revelation came to an end with the end of the Bible. In fact, you may have encountered that thinking yourself, on the part of someone to whom you spoke about the Book of Mormon.
Such people often quote from the last chapter of Revelation in the Bible, suggesting that verse 18 teaches that there can be no more scripture. We will take a moment here and quote Revelation 22:18, and then show what is incorrect about their interpretation.
Revelation 22:18 For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:
One of the academic problems with their interpretation is that the Book of Revelation is not the last book of the New Testament. Bible scholars agree that the Gospel of John was written after John wrote Revelation. Therefore, much in the Bible was written after the Book of Revelation. Not only that, but Ezekiel specifically prophesies that there will be a book of scripture that will be added to the Bible (see Ezekiel 37:16-20).