1 But, behold, in the last days, or in the days of the Gentiles—yea, behold all the nations of the Gentiles and also the Jews, both those who shall come upon this land and those who shall be upon other lands, yea, even upon all the lands of the earth, behold, they will be drunken with iniquity and all manner of abominations—[As in the times of Noah, so shall it be in the last days when Christ returns. Luke 17:26]
Here, Nephi adds the words of Isaiah 29:
2 And when that day shall come they shall be visited of the Lord of Hosts, with thunder and with earthquake, and with a great noise, and with storm, and with tempest, and with the flame of devouring fire.
3 And all the nations that fight against Zion, and that distress her, shall be as a dream of a night vision; yea, it shall be unto them, even as unto a hungry man which dreameth, and behold he eateth but he awaketh and his soul is empty; or like unto a thirsty man which dreameth, and behold he drinketh but he awaketh and behold he is faint, and his soul hath appetite; yea, even so shall the multitude of all the nations be that fight against Mount Zion. [They think that there is nothing to prevent them from taking what they want, and then they see that they have no power.]
4 For behold, all ye that doeth iniquity, stay yourselves and wonder, for ye shall cry out, and cry; yea, ye shall be drunken but not with wine, ye shall stagger but not with strong drink. [To be intoxicated is to lack clarity of what is happening around them. They usually feel content and euphoric, yet stumble.]
5 For behold, the Lord hath poured out upon you the spirit of deep sleep. For behold, ye have closed your eyes, and ye have rejected the prophets; and your rulers, and the seers hath he covered because of your iniquity. [They will have no understanding of their situation because they reject the light.]
6 And it shall come to pass that the Lord God shall bring forth unto you the words of a book, and they shall be the words of them which have slumbered. [The entire Book of Mormon, including the sealed portion.]
7 And behold the book shall be sealed; and in the book shall be a revelation from God, from the beginning of the world to the ending thereof.
8 Wherefore, because of the things which are sealed up, the things which are sealed shall not be delivered in the day of the wickedness and abominations of the people. Wherefore the book shall be kept from them. [Not revealed until Zion is established.]
9 But the book shall be delivered unto a man, and he shall deliver the words of the book, which are the words of those who have slumbered in the dust, and he shall deliver these words unto another; [speaking of Joseph Smith]
10 But the words which are sealed he shall not deliver, neither shall he deliver the book. For the book shall be sealed by the power of God, and the revelation which was sealed shall be kept in the book until the own due time of the Lord, that they may come forth; for behold, they reveal all things from the foundation of the world unto the end thereof. [This will occur when First Zion is established before the Joseph Servant builds the New Jerusalem.]
11 And the day cometh that the words of the book which were sealed shall be read upon the house tops; and they shall be read by the power of Christ; and all things shall be revealed unto the children of men which ever have been among the children of men, and which ever will be even unto the end of the earth. [This will literally occur in the future in Zion and her stakes.]
12 Wherefore, at that day when the book shall be delivered unto the man of whom I have spoken, the book shall be hid from the eyes of the world, that the eyes of none shall behold it save it be that three witnesses shall behold it, by the power of God, besides him to whom the book shall be delivered; and they shall testify to the truth of the book and the things therein. [Just as it is documented in Church History.]
13 And there is none other which shall view it, save it be a few according to the will of God [Eight Witnesses], to bear testimony of his word unto the children of men; for the Lord God hath said that the words of the faithful should speak as if it were from the dead.
14 Wherefore, the Lord God will proceed to bring forth the words of the book; and in the mouth of as many witnesses as seemeth him good will he establish his word; and wo be unto him that rejecteth the word of God!
15 But behold, it shall come to pass that the Lord God shall say unto him to whom he shall deliver the book: Take these words which are not sealed and deliver them to another, that he may show them unto the learned, saying: Read this, I pray thee. And the learned shall say: Bring hither the book, and I will read them.
16 And now, because of the glory of the world and to get gain will they say this, and not for the glory of God.
17 And the man shall say: I cannot bring the book, for it is sealed.
18 Then shall the learned say: I cannot read it.
19 Wherefore it shall come to pass, that the Lord God will deliver again the book and the words thereof to him that is not learned; and the man that is not learned shall say: I am not learned.
20 Then shall the Lord God say unto him: The learned shall not read them, for they have rejected them, and I am able to do mine own work; wherefore thou shalt read the words which I shall give unto thee. [These verses reflect a broad view amongst scholars that criticize the Book of Mormon, and the skepticism that exists for it amongst academia and the Christian world.]
21 Touch not the things which are sealed, for I will bring them forth in mine own due time; for I will show unto the children of men that I am able to do mine own work. [The Lord uses the simple, uneducated, and unassuming to bring about His works. He never uses brilliant scholars, or those in high places to establish His kingdom. In the last days, as things begin to heat up, expect to find the servants amongst the humble and unassuming.]
22 Wherefore, when thou hast read the words which I have commanded thee, and obtained the witnesses which I have promised unto thee, then shalt thou seal up the book again, and hide it up unto me, that I may preserve the words which thou hast not read, [This was the command to Joseph Smith] until I shall see fit in mine own wisdom [foresight] to reveal all things unto the children of men.
Today, the record of the plates including the sealed portion are stored in the Hill Shim until the Lord is ready to bring it forth to be translated, along with many other records. It will not be announced to the world when this is occurring, but it will coincide with the establishment of Zion.
23 For behold, I am God; and I am a God of miracles; and I will show unto the world that I am the same yesterday, today, and forever; and I work not among the children of men save it be according to their faith. [That is a powerful statement to consider. He only works amongst us “according to our faith.” What does that mean? Faith is receiving revelation and acting upon it. How many receive impressions, or nudges, and dismiss the call to do things? Unless we are proactive in bringing about righteousness we are left to our own devises. Now more than ever the Lord needs servants who are actively seeking Him, which means we are seeking to know His will for us and our families.]
24 And again it shall come to pass that the Lord shall say unto him that shall read the words that shall be delivered him: [The Lord shall say to those who shall receive the Book of Mormon, and who is that?]
25 Forasmuch as this people [Those who identify with the Book of Mormon.] draw near unto me with their mouth, and with their lips do honor me, but have removed their hearts far from me, and their fear towards me is taught by the precepts of men—[The Lord says that in the last days there shall be a people that follow the words of the Book of Mormon, and shall say good things; however their hearts will be far from Him. This is because they follow the precepts of men.]
Those are hard words for any to hear that would be counted among such, but the Lord judges the heart. What is He looking for? A broken heart and a contrite spirit. What is that? Full submission to the Lord and only Him. How is that accomplished? The answer is coming in chapter 32 of 2 Nephi.
26 Therefore, I will proceed to do a marvelous work among this people, yea, a marvelous work and a wonder, for the wisdom of their wise and learned shall perish, and the understanding of their prudent shall be hid. [This has yet to occur in its fullness.]
27 And wo unto them that seek deep to hide their counsel from the Lord! [They do not govern by revelation.] And their works are in the dark [They act secretly.]; and they say: Who seeth us, and who knoweth us? And they also say: Surely, your turning of things upside down shall be esteemed as the potter’s clay. [Translation: “We know what we are doing and we can change things as we wish according to our desire.”] But behold, I will show unto them, saith the Lord of Hosts, that I know all their works. For shall the work say of him that made it, he made me not? Or shall the thing framed say of him that framed it, he had no understanding? [You cannot deny the foundation of your faith.]
28 But behold, saith the Lord of Hosts: I will show unto the children of men that it is yet a very little while and Lebanon [the origins] shall be turned into a fruitful field [shall gather righteousness in its return]; and the fruitful field shall be esteemed as a forest. [and the righteous shall be many]
29 And in that day shall the deaf hear the words of the book, and the eyes of the blind shall see out of obscurity and out of darkness. [Those who could not understand the truth because of unbelief and false traditions shall see the light.]
30 And the meek [Those who seek Christ, repentant] also shall increase, and their joy shall be in the Lord, and the poor [in spirit, those with a broken heart and contrite spirit] among men shall rejoice in the Holy One of Israel. [see the Beatitudes, 3 Nephi 12:3-11]
31 For assuredly as the Lord liveth they shall see that the terrible one [the Adversary] is brought to naught [nothing], and the scorner is consumed, and all that watch for iniquity are cut off;
32 And they that make a man an offender for a word [the church that disciplines those for disagreeing], and lay a snare for him that reproveth in the gate [seek to catch those who call them to repentance], and turn aside the just for a thing of naught. [to reject those that are righteous as nothing]
33 Therefore, thus saith the Lord, who redeemed Abraham, concerning the house of Jacob [the people of the Covenant]: Jacob shall not now be ashamed, neither shall his face now wax pale. [You shall not be abandoned to disgrace.]
34 But when he seeth his children, the work of my hands, in the midst of him, they shall sanctify [be made holy in] my name, and sanctify the Holy One of Jacob [Second Comforter], and shall fear [reverence/worship] the God of Israel.
35 They also that erred in spirit shall come to understanding, and they that murmured shall learn doctrine. [And those that once did not understand the true nature of God and His holiness will be brought to the truth.]
In this chapter Nephi sounds a lot like Isaiah in his manner of writing for the verses not included in Isaiah. I don’t know if the brass plates included these verses, or if Nephi added according to his personal revelation. He uses metaphor and reproves the wicked in the last days. The words are direct, sobering, yet filled with hope.