And he surely did show unto the prophets of old all things concerning them; and also he did show unto many concerning us; wherefore, it must needs be that we know concerning them for they are written upon the plates of brass.
Now it came to pass that I, Nephi, did teach my brethren these things; and it came to pass that I did read many things to them, which were engraven upon the plates of brass, that they might know concerning the doings of the Lord in other lands, among people of old.
And I did read many things unto them which were written in the books of Moses; but that I might more fully persuade them to believe in the Lord their Redeemer I did read unto them that which was written by the prophet Isaiah; for I did liken all scriptures unto us, that it might be for our profit and learning.
Wherefore I spake unto them, saying: Hear ye the words of the prophet, ye who are a remnant of the house of Israel, a branch who have been broken off; hear ye the words of the prophet, which were written unto all the house of Israel, and liken them unto yourselves, that ye may have hope as well as your brethren from whom ye have been broken off; for after this manner has the prophet written.
Source: 1 Nephi 19:21-24; The Book of Mormon: Another Testament of Jesus Christ