Priors were sent to spread the word of the Ori and to vanquish unbelievers, however their arrival in the Milky Way Galaxy was only the first wave in a holy crusade. On P8X-412, the Prior warned, "Those seeking eternal salvation can follow the word of the Ori. Those that do not shall die as mortals. It is as simple as that. The Day of Reckoning approaches. Your destiny awaits." On the Sodan world of P9G-844, a Prior proclaimed, "Life and death, light and darkness, hope and despair… The rift was created, and on that day, the Ori were born. But the hatred of those who strayed from the true path festered and bloomed in the dark corners of the Avernikas to which they had been cast! And consumed by this hatred, they poisoned all they touched, bringing death, darkness, and despair! And the souls of their victims knew no peace until the Ori came and whispered to them, 'Sleep, for the end draws near.' And on that day all will rejoice, when the Ori come and lay them low!" His words were a chilling prophecy that the Ori were coming to this galaxy to destroy the Ancients. The Doci had vowed that "Great holy armies shall be gathered and trained to fight all those who embrace evil. In the name of the gods, ships shall be built to carry our warriors out amongst the stars, and we will spread Origin to all the unbelievers. The power of the Ori will be felt far and wide and the wicked shall be vanquished." As vast ships and armies of warriors prepared for the crusade, the Priors warned of an impending "Doomsday," a day when all shall witness the final battle between the light and darkness and when all who have renounced the Ori will feel their wrath. Referred to as the "Day of Reckoning" for those who were raised by evil, the holy crusade began with the arrival through the supergate of four Ori ships in the Milky Way Galaxy.

Cross Reference: Doci, Doomsday, Ori, Ori Warriors, Ori Warship, Prior, Supergate

Episode Reference: The Powers That Be, The Fourth Horseman, Crusade, Camelot