2 Nephi 25

2 Nephi 25:1-2 Isaiah spake many things which were hard for many of my people to understand...For I have not taught them many things concerning the manner of the Jews; for their works were works of darkness and their doings were doings of abomination. When Christ came, the Jews had a hard time believing that he was the anointed Messiah, but the Nephites did not have the same trouble. From this scripture, it would appear that the Nephite acceptance of Christ could have been the result of a deliberate and calculated move on Nephi's part to wean them off the Jewish way of thinking.

25:4 The words of Isaiah are not plain unto you, nevertheless, they are plain unto all those that have the spirit of prophesy. Nice (not very subtle) dig, Nephi. Oh, you don't get it? Well, smart people do. We know the testimony of Christ is the spirit of prophesy, so Isaiah should be plain as day to anybody who has a testimony of Christ. But it isn't. I wondery why. Part of it is definitely going to be context, and background. Joseph Smith said something fairly similar about the book of Revelation, and I think that can enlighten us a little. There's an entire section of the Doctrine and Covenants that is simply a question and answer session with the Lord about what do certain parts of the book of Revelation mean. This conversation undoubtedly took place before he said the book was plain as day and easy to understand, and maybe that's what Nephi means. Isaiah is plain as day and easy to understand after you have the opportunity to have a Q&A session with the Lord about it.