1 Nephi 14: Two Churches – The Church of God and the Church of the Devil
“….if the Gentiles shall hearken unto the Lamb of God in that day that he shall manifest himself unto them in word, and also in power… unto the taking away of their stumbling blocks—…they shall be numbered among the seed of thy father; yea, they shall be numbered among the house of Israel; and they shall be a blessed people upon the promised land forever; they shall be no more brought down into captivity; and the house of Israel shall no more be confounded.” (1 Nephi 14:1-2)
In other words, if the Gentiles follow the Lord and do not harden their hearts against Him, they shall have stumbling blocks before them removed and they shall be numbered among the house of Israel in the Last Days and shall remain in the Promised Land forever.
The Angel shows Nephi more visions;
“…it came to pass that he [the Angel] said unto me [Nephi]: Look, and behold that great and abominable church, which is the mother of abominations, whose founder is the devil. And he said unto me: Behold there are save two churches only; the one is the church of the Lamb of God, and the other is the church of the devil; wherefore, whoso belongeth not to the church of the Lamb of God belongeth to that great church, which is the mother of abominations; and she is the whore of all the earth.” (1 Nephi 14:9-10) Nephi saw that there could only be one Church of God, those who do not belong to that Church belong to the Church of Satan. Nephi is shown more of the vision of this Great and Abominable Church; “….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. 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.” (1 Nephi 14:11-12) Nephi saw that the Great and Abominable Church was strong in power and people and spread throughout the world. Nephi also saw the True Church of God upon the face of the earth, however its numbers were few. Nephi sees that Satan teams up to attack the True Church of the Lamb.
Nephi sees that there appear wars and rumors of wars throughout the land and that because of this great and abominable church, war was also declared among the Saints of the True Church of the Lamb. “…when the day cometh that the wrath of God is poured out upon the mother of harlots, which is the great and abominable church of all the earth, whose founder is the devil, then, at that day, the work of the Father shall commence, in preparing the way for the fulfilling of his covenants, which he hath made to his people who are of the house of Israel.” (1 Nephi 14:17) In the Last Days the Lord will deliver His people and will prepare a way for those who desire to join his church and fulfill their covenants with Him.
The Angel of the Lord commands Nephi to look, and Nephi looks. He sees one of the Twelve Apostles and is told that one of the Twelve would finish writing what he had seen in a book [the Bible] and shall also write regarding the End of the World and the Second Coming of Jesus Christ.
The Angel of the Lord speaks to Nephi; “…the things which he shall write are just and true; and behold they are written in the book[The Bible – New Testament] which thou beheld proceeding out of the mouth of the Jew; and at the time they proceeded out of the mouth of the Jew, or, at the time the book proceeded out of the mouth of the Jew, the things which were written were plain and pure, and most precious and easy to the understanding of all men.” (1 Nephi 14:23) Here it makes sense why the Book of Mormon was needed. At the time of this Vision the Bible (which was still being written) was just a pure, and easy for the understanding of men. However, with time these things became perverted by evil men who desired to change the Word of God. Therefore, throughout the ages the Bible had been changed and parts of the book were also lost. Therefore the Book of Mormon would come forth in the last days to be a companion to the Bible, in order that we might understand more of the Gospel of Jesus Christ.