1 Nephi 16:22

And it came to pass that I, Nephi, did speak much unto my brethren,

because they had hardened their hearts again,

even unto complaining against the Lord their God.

because they had hardened their hearts again,

their - 54 occurrences in 34 verses - 1 Nephi 16:19, 20, 21, 22, 32, 35, 38, 39,   17:2, 19, 29, 30, 35, 38, 40, 41, 42, 48, 49, 52, 53,   18:9, 15, 17, 18, 19, 20,   19:7, 9, 11, 13, 14, 15, 18

their hearts - 11 occurrences in 10 verses - 1 Nephi 16:22, 38,   17:19, 30, 41, 42,   18:20,   19:13, 14, 15