Original Chapter 5. Comprising chapter 16 to chapter 19 verse 21.
And now it came to pass that after I, Nephi, had made an end of speaking to my brethren, behold they said unto me: Thou hast declared unto us hard things, more than we are able to bear.
In Royal Skousen’s “The Book of Mormon: The Earliest Text”, 1 Nephi 16:1 reads a little differently: