According to Terrence Szink, one of the best known sections of the Book of Mormon tells the story of the journey of Lehi and his family from Jerusalem to the new promised land in the American continent. Yet, since the small plates were intended to contain the "things of God" (1 Nephi 6:4), why was this account included on the small plates while other things that seem to be more the "things of God" (such as the "many things which [Lehi] saw in visions and in dreams" (1 Nephi 1:16) were left out?
Quite probably, Nephi, the author of this section, consciously wrote his account of the wilderness journey in a way that would remind the reader of the Exodus of the children of Israel from Egypt. He did this to prove that God loved and cared for the Nephites, just as the Exodus from Egypt was proof of God's favor for the children of Israel. Therefore, this story of the journey truly is about the things of God and does belong on the small plates. [Terrence L. Szink, "Nephi and the Exodus," in Rediscovering the Book of Mormon, p. 38]
Note* Perhaps the exodus stories of Moses and Lehi represent more than just general caring of the Lord for the children of Israel. From a covenant perspective, the exodus stories show that the Lord will keep his covenants with his children (his covenant children--represented by the House of Israel) and lead them through the wilderness (earth life, bondage to sin) to the Promised Land (the place where the gospel and gospel covenants are established--zion, heaven). [Alan C. Miner, Personal Notes] [See the commentary on 1 Nephi 17:13; 2 Nephi 11:8]