Book of Mormon is a Type of Christ

I love the symmetry between the coming forth of the Book of Mormon and the Resurrection of Jesus Christ. If you look close, you will see that the Book of Mormon is a type of Christ. First that the book contains the word of God just as Christ. Second, that it was sealed in a stone box (cyst, ossuary, ark) and came forth out of the Earth just like Christ rose from the dead from the Garden Tomb. Third, that the coming forth of the Book of Mormon was accompanied by angelic beings. You will remember that angels who attended the tomb at Christ's resurrection. Fourth, that both the body of Jesus Christ and the Book of Mormon were in the custody of a Joseph: Joseph of Arimathea and Joseph Smith respectively, and Fifth, that Both the Book of Mormon and Jesus Christ had 12 special witnesses of their divinity. 3 of which were given a more powerful spiritual manifestation while the others a more physical witness (idea from CRAIG R. FROGLEY, CES).

First divine witness of the golden plates and angel was Mary Whitmer before the 3 and 8 witnesses.The stone box contained golden plate containing the covenant. Anciently, the Ark of the Covenant was a gold box carrying stone tablets and other artifacts. The golden plates with the other artifacts (urim and thummin,  breasrplate, Liahona, sword of Laban) in a stone box constitute an ark of the new covenant. - Don Bradley