What does the Bible say about the Book of Mormon?

The Bible Talks about Jesus Visiting the People Recorded in the Book of Mormon
John 10:16 talks about "other sheep" that Jesus said were of a different fold than the Jews. He told the Jews that he must also bring them in so that there was "one fold, and one shepherd." I believe this was referring to other people in a different area of the earth, in the American continents. I believe this for three reasons:

1. He was already among his sheep while among the Jews, so he was not referring to the Jews as "other sheep." Further, Jesus said that he was only sent to "the lost sheep of the house of Israel" (Matthew 15:24), which means not to the Gentiles. The people inhabiting the Americas are a branch of the house of Israel (tribe of Joseph- see 1 Nephi 5:14).

2. Jesus visited the Americas after his resurrection. You can read all about it in 3 Nephi 11 in the Book of Mormon.

3. Most importantly, Jesus himself said that this is the case in 3 Nephi 15:21 while among the Nephites in the Americas. He told the Nephites, "And verily I say unto you, that ye are they of whom I said: Other sheep I have which are not of this fold; them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd." It doesn't get much clearer than that.

The Bible talks about the Sticks of Joseph and Judah becoming One
In Ezekiel 37:15-17 a prophecy is given about the union of the Bible and the Book of Mormon. The word "stick" in this context likely refers to wooden writing tablets used during this time. The phrase "Stick of Judah" would be the writings of the Jews, known to us as the Bible. Remember, it wasn't called "the Bible" back then and most of it didn't even exist yet. The Bible does not contain a record of Joseph, so I expect most Bible scholars and historians would assume that these records had been lost thousands of years ago.

The great truth is that they were not lost. The "stick of Joseph" - or scriptural account of the descendants of Joseph - is the Book of Mormon. And the prophecy has literally been fulfilled as I carry my Book of Mormon and Bible in my hand as one. As I mentioned previously in this post, the Book of Mormon contains the record of a people who were descendants of Joseph and were guided by the hand of the Lord to the Americas. Their record became the Book of Mormon.

Isaiah in the Bible Prophesied of the Coming Forth of the Book of Mormon
Isaiah prophesied of a people "speaking out of the dust" (Isaiah 29:4). I believe that he is referring to the Nephite people who lived in the Americas and wrote what is now the Book of Mormon. Around AD 400, the prophet Moroni buried the Book of Mormon, which was written on metal plates, in a stone box beneath the earth. They were preserved there until the latter-day prophet Joseph Smith was led to them and translated them by the power and gift of God in AD 1829. The Book of Mormon was literally buried in the earth and now has been brought forth "out of the dust" to speak to us.

Isaiah prophesied further about the coming forth of the Book of Mormon later in the same chapter. Isaiah wrote: "And the vision of all is become unto you as the words of a book that is sealed, which men deliver to one that is learned, saying, Read this, I pray thee: and he saith, I cannot; for it is sealed" (Isaiah 29:11). The Book of Mormon had a portion of it which was sealed and remains sealed to this day. Martin Harris met with Charles Anthon, a professor in New York City and expert in ancient writings. Martin Harris presented him with some of the characters from the Book of Mormon and Joseph's translation of them. Anthon asserted that the translation was true and asked to translate the plates himself.  Martin informed him that part of the plates were sealed and he unknowingly fulfilled prophecy with his response, "I cannot read a sealed book!" (Joseph Smith- History 1:63-65).

Isaiah continues in verse 12: "And the book is delivered to him that is not learned, saying, Read this, I pray thee: and he saith, I am not learned." Isaiah sees the boy Joseph, who didn't have more than a Jr. High education and felt overwhelmed by the calling to translate ancient scripture into English. Isaiah continues to describe the time in which the Book of Mormon was restored and the "marvelous work and a wonder" that He performed through his prophet Joseph Smith to restore his Church to the earth (Isaiah 29:13-18).