1 Nephi 17:8

And it came to pass that the Lord spake unto me, saying:

Thou shalt construct a ship, after the manner which I shall show thee,

that I may carry thy people across these waters.

Thou shalt construct a ship, after the manner which I shall show thee,

a - 47 occurrences in 33 verses - 1 Nephi 16:6, 10, 13, 17, 23, 29, 33, 38,   17:8, 11, 17, 18, 19, 22, 25, 37, 41, 43, 45, 48, 49, 51, 55,   18:10, 13, 18, 21,   19:2, 3, 4, 9, 10, 14

a ship - 7 occurrences in 6 verses - 1 Nephi 17:8, 17, 18, 19, 49, 51