1 Nephi 4:14

And now, when I, Nephi, had heard these words,

I remembered the words of the Lord

which he spake unto me in the wilderness,

saying that: Inasmuch as thy seed shall keep my commandments,

they shall prosper in the land of promise.

And now, when I, Nephi, had heard these words,

when - 15 occurrences in 15 verses - 1 Nephi 1:14, 20,   2:6, 9,   3:8, 10, 25,   4:4, 8, 14, 28, 30, 37,   5:7, 17

when I - 3 occurrences in 3 verses - 1 Nephi 4:4, 8, 14