On the “many churches” in the last days that pervert the right ways of the Lord, see commentary at 1 Nephi 13:2–9; 2 Nephi 28:1–8; 4 Nephi 1:20–49; and Mormon 8:26–41.
On the “secret combinations” that also pervert the right ways of the Lord, see commentary at Helaman 1 and Helaman 6:21–25.