The Church was not wholly consistent in its explanations of these phenomena. In general the swarms of devouring insects and other noxious vermin are assumed to have been sent at the instigation of Satan (_instigante sathana, per maleficium diabolicum_), and are denounced and deprecated as snares of the devil and his satellites (_diaboli et ministrorum insidias_); again they are treated as creatures of God and agents of the Almighty for the punishment of sinful man; from this latter point of view every effort to exterminate them by natural means would be regarded as a sort of sacrilege, an impious attempt to war upon the Supreme Being and to withstand His designs. In either case, whether they were the emissaries of a wicked demon or of a wrathful Deity, the only proper and permissible way of relief was through the offices of the Church, whose bishops and other clergy were empowered to perform the adjurations and maledictions or to prescribe the penances and propitiations necessary to produce this result. If the insects were instruments of the devil, they might be driven into the sea or banished to some arid region, where they would all miserably perish; if, on the other hand, they were recognized as the ministers of God, divinely delegated to scourge mankind for the promotion of piety, it would be suitable, after they had fulfilled their mission, to cause them to withdraw from the cultivated fields and to assign them a spot, where they might live in comfort without injury to the inhabitants. The records contain instances of both kinds of treatment.