The introduction into the heathen world of the fundamental truths that there is but one God, omnipotent and omniscient, who overrules every event, that He has revealed Himself through His Son as a God of love and mercy, and that man's duty to Him is obedience to His laws, was a mighty step in advance of the gross conceptions of idolatry formerly prevalent among these nations. But neither heathens nor Christians had for a long time any clear idea that the overruling of God in Providence was according to fixed laws. Being ignorant on this point, they ascribed to unseen supernatural agency, working in a capricious fashion, all phenomena which appeared to differ from, or disturb the ordinary course of events. Upon such matters heathen and Christian ideas commingled, and thus heathen ideas and practices were incorporated with Christian ideas and practices. Then, when ecclesiastical councils met to determine truth, and formulate their creeds, these combined heathen and Christian ideas being accepted by them, became dogmas of the Church, and henceforth those who differed from the dogmatic creed of the Church, or advocated views in advance of these confessions, were regarded as enemies of truth. Naturally, as the Church became powerful she became more repressive, and opposed all enquiry which appeared to lead to conclusions different from those already promulgated by her, and finally, it became a capital offence to teach any other doctrines than those sanctioned by the Church. The beliefs of the members of these councils being, as we have already seen, a mixture of heathen and Christian ideas, the Church thus became a great conservator of superstition; and to show that this was really so, we may adduce one example:--Pope Innocent VIII. issued a Bull as follows:--"It has come to our ears that members of both sexes do not avoid to have intercourse with the infernal fiends, and that, by this service, they afflict both man and beast, that they blight the marriage bed, destroy the births of women and the increase of cattle, they blast the corn on the ground, the grapes of the vineyard and the fruits of the trees, and the grass and herbs of the field." The promulgation of this Bull is said to have produced dreadful consequences, by thousands being burned and otherwise put to death, for having intercourse with the fiends.