1 Nephi 15:3

For he truly spake many great things unto them,

which were hard to be understood,

save a man should inquire of the Lord;

and they being hard in their hearts,

therefore they did not look unto the Lord as they ought.

which were hard to be understood,

were - 6 occurrences in 5 verses - 1 Nephi 15:2, 3, 5, 20, 32