RH,
Here are the verses you presented, and as I get time I’ll explain about how an angel teaching John and a vision that John has can present the gospel message in the same language and with the same message as an angel teaching other prophets or as a vision another prophet has.
Rev 11:9
9 And they of the people and kindreds and tongues and nations shall see their dead bodies three days and an half, and shall not suffer their dead bodies to be put in graves.
1 Nephi 5:18
18 That these plates of brass should go forth unto all nations, kindreds, tongues, and people who were of his seed.
Rev 7:14
14 And I said unto him, Sir, thou knowest. And he said to me, These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb.
1 Nephi 12:10-11
10 And these twelve ministers whom thou beholdest shall judge thy seed. And, behold, they are righteous forever; for because of their faith in the Lamb of God their garments are made white in his blood.
11 And the angel said unto me: Look! And I looked, and beheld three generations pass away in righteousness; and their garments were white even like unto the Lamb of God. And the angel said unto me: These are made white in the blood of the Lamb, because of their faith in him.
Rev 18:12
12 The merchandise of gold, and silver, and precious stones, and of pearls, and fine linen, and purple, and silk, and scarlet, and all thyine wood, and all manner vessels of ivory, and all manner vessels of most precious wood, and of brass, and iron, and marble,
1 Nephi 13:7-9
7 And I also saw gold, and silver, and silks, and scarlets, and fine-twined linen, and all manner of precious clothing; and I saw many harlots.
8 And the angel spake unto me, saying: Behold the gold, and the silver, and the silks, and the scarlets, and the fine-twined linen, and the precious clothing, and the harlots, are the desires of this great and abominable church.
9 And also for the praise of the world do they destroy the saints of God, and bring them down into captivity.
Rev 17:1,15,
1 And there came one of the seven angels which had the seven vials, and talked with me, saying unto me, Come hither; I will shew unto thee the judgment of the great whore that sitteth upon many waters:
15 And he saith unto me, The waters which thou sawest, where the whore sitteth, are peoples, and multitudes, and nations, and tongues.
1 Nephi 14:11-14
11 And it came to pass that I looked and beheld the whore of all the earth, and she sat upon many waters; and she had dominion over all the earth, among all nations, kindreds, tongues, and people.
12 And it came to pass that I beheld the church of the Lamb of God, and its numbers were few, because of the wickedness and abominations of the whore who sat upon many waters; nevertheless, I beheld that the church of the Lamb, who were the saints of God, were also upon all the face of the earth; and their dominions upon the face of the earth were small, because of the wickedness of the great whore whom I saw.
13 And it came to pass that I beheld that the great mother of abominations did gather together multitudes upon the face of all the earth, among all the nations of the Gentiles, to fight against the Lamb of God.
14 And it came to pass that I, Nephi, beheld the power of the Lamb of God, that it descended upon the saints of the church of the Lamb, and upon the covenant people of the Lord, who were scattered upon all the face of the earth; and they were armed with righteousness and with the power of God in great glory.
Rev 14:4
4 These are they which were not defiled with women; for they are virgins. These are they which follow the Lamb whithersoever he goeth. These were redeemed from among men, being the firstfruits unto God and to the Lamb.
, 2 Nephi 2:9-10
9 Wherefore, he is the firstfruits unto God, inasmuch as he shall make intercession for all the children of men; and they that believe in him shall be saved.
10 And because of the intercession for all, all men come unto God; wherefore, they stand in the presence of him, to be judged of him according to the truth and holiness which is in him. Wherefore, the ends of the law which the Holy One hath given, unto the inflicting of the punishment which is affixed, which punishment that is affixed is in opposition to that of the happiness which is affixed, to answer the ends of the atonement—
Rev 20:2
2 And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years,
, 2 Nephi 2:18
18 And because he had fallen from heaven, and had become miserable forever, he sought also the misery of all mankind. Wherefore, he said unto Eve, yea, even that old serpent, who is the devil, who is the father of all lies, wherefore he said: Partake of the forbidden fruit, and ye shall not die, but ye shall be as God, knowing good and evil.
Rev 20:13
13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
, 2 Nephi 9:12
12 And this death of which I have spoken, which is the spiritual death, shall deliver up its dead; which spiritual death is hell; wherefore, death and hell must deliver up their dead, and hell must deliver up its captive spirits, and the grave must deliver up its captive bodies, and the bodies and the spirits of men will be restored one to the other; and it is by the power of the resurrection of the Holy One of Israel.