1 Nephi 21:6

And he said:

It is a light thing

that thou shouldst be my servant

to raise up the tribes of Jacob,

and to restore the preserved of Israel.

I will also give thee for a light to the Gentiles,

that thou mayest be my salvation unto the ends of the earth.

It is a light thing

a - 15 occurrences in 11 verses - 1 Nephi 19:24,   20:8, 18, 20,   21:2, 6, 8, 11, 15, 18, 21

a light - 2 occurrences in 1 verse - 1 Nephi 21:6