3. It was impossible, from the nature of man, that he should extricate himself from the corrupting influence of idolatry. In this place we wish to state a principle which should be kept in view throughout the following discussion: _If man were ever redeemed from idolatrous worship, his redemption would have to be accomplished by means and instrumentalities adapted to his nature and the circumstances in which he existed._ If the faculties of his nature were changed, he would not be man. If his temporal condition were changed, different means would be necessary; if, therefore, man, as man, in his present condition, were to be recovered, the means of recovery, whether instituted by God or man, must be adapted to his nature and his circumstances. The only way, then, in which relief was possible for man was, that an object of worship should be placed before the mind directly opposite in moral character to those he had before adored. If his heart was ever purified, it must be by tearing his affections from his gods, and fixing them upon a righteous and holy being as the proper object of his homage. But for man to form such an object was plainly impossible. He could not transfer a better character to his gods than he himself possessed. Man could not 'bring a pure thing out of an impure.' The effect could not rise higher in moral purity than the cause. Human nature, in the maturity of its faculties, all agree, is imperfect and selfish; and, for an imperfect and selfish being to originate a perfect and holy character, deify it, and worship it, is to suppose what is contrary to the nature of things. The thought of the eloquent and philosophic Cicero expresses all that man could do. He could transfer his own imperfect attributes to the gods, and, by worshipping a being characterized by these imperfections, he would receive in himself the reaction of his own depravity. But if some men had had the power and the disposition to form for the world a perfectly holy object of worship, still the great difficulty, as we have seen in the case of the philosophers, would have remained, that is, a want of the necessary power to arrest the progress of idolatry and substitute the better worship. To doubt the truth of the prevailing idolatry was all that men, at the highest intellectual attainment ever acquired in heathen countries, could do. And if they had had power to convey their doubts to all minds in all the world, it would only have been to place mankind in the chaotic darkness of atheism, and leave them to be led again by their instincts into the abominations of imperfect and impure worship. The testimony, then, is conclusive, from the history of idolatry, that the evil became greater every age--from the statement of the wisest of the heathen, that they had no power to arrest its progress--and from the nature of man, that it was not possible for him to relieve himself from the corrupting influence of idolatry, in which he had become involved.