I was listening to the introduction to the Book of Mormon while driving yesterday. The first paragraph states: "The Book of Mormon is a volume of holy scripture comparable to the Bible. It is a record of God’s dealings with ancient inhabitants of the Americas and contains the fulness of the everlasting gospel." There are several other places where the Book of Mormon is indicated to contain the fullness of the gospel as well. (D&C 20:9, for example) So the thought I had, which I felt might be interesting to discuss, was: If the Book of Mormon contains the fulness of the gospel, where does that leave things that are not in the Book of Mormon? Take, for example, Eternal Marriage. Nothing in the Book of Mormon, right? But would it be accurate to say that eternal marriage is not part of the gospel? Hardly. I know there are reasonable ideas to be had concerning this. I have a few. I also haven't done any level of research into it. Yet. But I thought it would be interesting to pose the question without any conjecturing to begin with. Just to add to the conversation: The version I have on mp3 (which I presume is pre-2013 changes) is slightly different (see bolded): "The Book of Mormon is a volume of holy scripture comparable to the Bible. It is a record of God’s dealings with ancient inhabitants of the Americas and contains, as does the Bible, the fulness of the everlasting gospel."