4 ...on account of their faith, while others would reject the Spirit of God on account of the hardness of their hearts and blindness of their minds, while, if it had not been for this they might have had as great privilege as their brethren.
He's channeling Nephi-1 with this description. See 1 Nephi 7:
8 And now I, Nephi, being grieved for the hardness of their hearts, therefore I spake unto them, saying, yea, even unto Laman and unto Lemuel: Behold ye are mine elder brethren, and how is it that ye are so hard in your hearts, and so blind in your minds, that ye have need that I, your younger brother, should speak unto you, yea, and set an example for you?