“For as their laws and their governments were established by the voice of the people, and they who chose evil were more numerous than they who chose good, therefore they were ripening for destruction, for the laws had become corrupted.”
Original Source
Helaman 5:2
The Book of Mormon
https://www.lds.org/scriptures/bofm/hel/5.2?lang=eng
Accessed 5/3/2016