Everyone heard Jesus's speech in the last chapter.
2 For so great was the astonishment of the people that they did cease lamenting and howling for the loss of their kindred which had been slain; therefore there was silence in all the land for the space of many hours.
After his speech, they were so astonished that they stopped wailing and howling about all the people Jesus killed , and it was quiet for a while.
Then the voice began speaking again, and everyone heard it.
The voice said:
4 O ye people of these great cities which have fallen, who are descendants of Jacob, yea, who are of the house of Israel, how oft have I gathered you as a hen gathereth her chickens under her wings, and have nourished you.
O people of the cities that are now dead,
I would have gathered you under my wings like a hen gathers her chickens. 
5 And again, how oft would I have gathered you as a hen gathereth her chickens under her wings, yea, O ye people of the house of Israel, who have fallen; yea, O ye people of the house of Israel, ye that dwell at Jerusalem, as ye that have fallen; yea, how oft would I have gathered you as a hen gathereth her chickens, and ye would not.
I repeat: I would have gathered you under my wings like a hen gathers her chickens.
And again: I would have gathered you under my wings like a hen gathers her chickens.
But you wouldn't let me.
One more time:
I would have gathered you under my wings like a hen gathers her chickens.
And now if you don't repent, you will die too.
After the voice stopped speaking, the people began to weep and howl again because of all their family and friends that Jesus had killed.
9 It came to pass that thus did the three days pass away. And it was in the morning, and the darkness dispersed from off the face of the land, and the earth did cease to tremble, and the rocks did cease to rend, and the dreadful groanings did cease, and all the tumultuous noises did pass away.
But after three days, the darkness went away, the earth stopped shaking, the rocks stopped splitting, and those dreadful groanings went away.
10 And the earth did cleave together again, that it stood; and the mourning, and the weeping, and the wailing of the people who were spared alive did cease; and their mourning was turned into joy, and their lamentations into the praise and thanksgiving unto the Lord Jesus Christ, their Redeemer.
And the mourning, weeping, wailing, and howling of the people that weren't killed by Jesus finally stopped, their mourning turned into joy, and they began to thank the Lord Jesus (for not killing them like he did so many of their families and friends).
12 And it was the more righteous part of the people who were saved, and it was they who received the prophets and stoned them not; and it was they who had not shed the blood of the saints, who were spared --
The more righteous part of the people weren't killed by Jesus, those that listened to the prophets without stoning them, and who didn't shed any saint blood.
13 And they were spared and were not sunk and buried up in the earth; and they were not drowned in the depths of the sea; and they were not burned by fire, neither were they fallen upon and crushed to death; and they were not carried away in the whirlwind; neither were they overpowered by the vapor of smoke and of darkness.
These righteous people weren't drowned, burned, or crushed to death; they weren't carried away by whirlwinds or killed by smoke or darkness.
14 And now, whoso readeth, let him understand; he that hath the scriptures, let him search them, and see and behold if all these deaths and destructions by fire, and by smoke, and by tempests, and by whirlwinds, and by the opening of the earth to receive them, and all these things are not unto the fulfilling of the prophecies of many of the holy prophets.
You've just got to understand: the people that Jesus killed by fire, smoke, tempests, whirlwinds, ground-swallowings, and whatnot were required by the scriptures.
Jesus had to kill these people in these horrific ways or else the scriptures wouldn't be properly fulfilled.
Zenos and Zenock said these things would happen to the remnant of their seed. 
And we are a remnant of their seed.
17 Behold, our father Jacob also testified concerning a remnant of the seed of Joseph. And behold, are not we a remnant of the seed of Joseph? And these things which testify of us, are they not written upon the plates of brass which our father Lehi brought out of Jerusalem?
18 It came to pass that in the ending of the thirty and fourth year, behold, I will show unto you that the people of Nephi who were spared, and also those who had been called Lamanites, who had been spared, did have great favors shown unto them, and great blessings poured out upon their heads, insomuch that soon after the ascension of Christ into heaven he did truly manifest himself unto them --
Jacob also testified about the remnant of Joseph's seed.
And we are all just a remnant of his seed.
And wasn't there something about Joseph's seed in Lehi's plates?
And that's all I have to say about that.