When we come to the explanation of this mass of deception as it applies to the Christian society, and the conduct of Christians, we find that it consists of a great growth of specious and showy effects, which will in fact issue out of Christianity, not implying sterling goodness. Christianity will act as a great excitement to human nature, it will communicate a great impulse, it will move and stir man's feelings and intellect; this impulse will issue in a great variety of high gifts and activities, much zeal and ardor. But this brilliant manifestation will be to a large extent lacking in the substance of the Christian character. It will be a great show. That is to say, there will be underneath it the deceitful human heart--the _natura callida_, as Thomas à Kempis calls it, _quæ se semper pro fine habet_. We have even in the early Christian Church that specious display of gifts which put aside as secondary the more solid part of religion, and which St. Paul had so strongly to check. Gospel prophecy goes remarkably in this direction, as to what Christianity would do in the world; that it would not only bring out the truth of human nature, but would, like some powerful alchemy, elicit and extract the falsehood of it; that it would not only develop what was sincere and sterling in man, but what was counterfeit in him too. Not that Christianity favors falsehood, any more than the law favored sin because it brought out sin. The law, as St. Paul says, brought out sin because it was spiritual, and forced sin to be sin against light. So in the case of Christianity. If a very high, pure, and heart-searching religion is brought into contact with a corrupt nature, the nature grasps at the greatness of the religion, but will not give up itself; yet to unite the two requires a self-deception the more subtle and potent in proportion to the purity of the religion. And certainly, comparing the hypocrisy of the Christian with that of the old world, we see that the one was a weak production in comparison with the other, which is indeed a very powerful creation; throwing itself into feeling and language with an astonishing freedom and elasticity, and possessing wonderful spring and largeness.