“It is not only desirable that the Book of Mormon should substantiate the Bible and supply certain missing parts, it is absolutely necessary for eternal justice. It appears that in the economy of God there must be more than one witness for the truths that are taught to mankind. Without a second or third witness, the law cannot be binding on the day of judgment. … Not just the truth of the Bible as history and as a cultural record, but to establish … and prove that the testimony of Jesus Christ contained in the scriptures is true and correct” (Matthews, “Establishing the Truth of the Bible,” 211–12).