These verses continue to quote from Isaiah 29, with only minor changes. They correspond to Isaiah 29:18–21. In both Isaiah and in Nephi, this is a description of the power of the words of the book. Because of the words of the book, the spiritually blind will be able to see beyond the world’s darkness.
That the meek “shall increase” means that they will become greater, more important. It is, for them the same kind of reversal as the blind seeing.
The Lord’s adversary will be defeated, and all those who do the adversary’s work: the scorners, those who proclaim themselves to be the judges of iniquity; and those who judge harshly. There will be a reversal where all those who turn aside the just will themselves be turned aside.