Nevertheless, Mormons and those who call themselves Mormon Fundamentalists (or FLDS) believe in the same holy texts and the same sacred history. Both believe that Joseph Smith, who founded Mormonism in 1830, played a vital role in God’s plan for mankind; both LDS and FLDS consider him to be a prophet comparable in stature to Moses and Isaiah. Mormons and Mormon Fundamentalists are each convinced that God regards them, and them alone, as his favored children: “a peculiar treasure unto me above all people.” But if both proudly refer to themselves as the Lord’s chosen, they diverge on one especially inflammatory point of religious doctrine: unlike their present-day Mormon compatriots, Mormon Fundamentalists passionately believe that Saints have a divine obligation to take multiple wives. Followers of the FLDS faith engage in polygamy, they explain, as a matter of religious duty.