 Sepúlveda argued that the subjugation of certain Indians was warranted because of their sins against Natural Law; that their low level of civilization required civilized masters to maintain social order; that they should be made Christian and that this in turn required them to be pacified; and that only the Spanish could defend weak Indians against the abuses of the stronger ones.Las Casas countered that the scriptures did not in fact support war against all heathens, only against certain Canaanite tribes; that the Indians were not at all uncivilized nor lacking social order; that peaceful mission was the only true way of converting the natives; and finally that some weak Indians suffering at the hands of stronger ones was preferable to all Indians suffering at the hands of Spaniards.The judge, Fray Domingo de Soto, summarised the arguments.