1 Nephi 1:4
For it came to pass in the commencement of the first year
of the reign of Zedekiah, king of Judah,
(my father, Lehi, having dwelt at Jerusalem in all his days);
and in that same year there came many prophets, prophesying unto the people
that they must repent, or the great city Jerusalem must be destroyed.
For it came to pass in the commencement of the first year
for - 31 occurrences in 30 verses - 1 Nephi 1:4, 13, 15, 16, 19, 2:1, 11, 18, 19, 20, 23, 3:3, 7, 8, 16, 17, 18, 24, 28, 4:1, 2, 7, 12, 17, 21, 28, 36, 5:1, 2, 4