Jacob, the brother of Nephi, begins a discourse, in which he, at the request of his brother, quotes at length from the prophet Isaiah. It is, perhaps, his first public discourse after he had been appointed a priest and teacher. (2 Ne. 5:26)
For various reasons it is an important sermon. It proves that the latter part of Isaiah, which some modern critics like to consider as the work of a "second" Isaiah, was accepted as genuine at the time of Nephi, as it was in the days of our Lord. It shows us that the Nephites held meetings for worship and instruction, as is done in our days, and that they based their addresses on the holy Scriptures, as we do.