Is this summary verse describing his sermon or several other speech events that are not otherwise recorded? Although either reading is plausible, I find it more likely that verse 11 was the conclusion of his sermon at the temple and that he preached on many other occasions, frequently calling them to repentance. Jacob does not shy away from citing long texts, as Zenos’s allegory of the olive tree will attest. It would be odd for Jacob to provide the text of a sermon, and then stop short of the conclusion. True, Nephi apparently did just that in 2 Nephi 32, but I hypothesize that we can account for it by his sense that he was dying and he broke off recording the sermon to leave instead his final testimony. But this situation does not seem to apply to Jacob, and he certainly continued to teach his people, even though he did not include other sermons. Thus, this verse appears to refer to something other than the inserted sermon. As a final argument the sermon is so well laid out with paralleling opposites that tacking on other sins would seem to diminish its effects.