The love of the world can not be expunged by a mere demonstration of the world’s worthlessness. But may it not be supplanted by the love of that which is more worthy than itself? The heart can not be prevailed upon to part with the world by a single act of resignation. But may not the heart be prevailed upon to admit into its preference another, who shall subordinate the world, and bring it down from its wonted ascendancy? If the throne which is placed there must have an occupier, and the tyrant that now reigns has occupied it wrongfully, he may not leave a bosom which would rather detain him than be left in desolation. But may he not give way to the lawful sovereign, appearing with every charm that can secure his willing admittance, and taking unto himself his great power to subdue the moral nature of man, and to reign over it? In a word, if the way to disengage the heart from the positive love of one great and ascendant object, is to fasten it in positive love to another, then it is not by exposing the worthlessness of the former, but by addressing to the mental eye the worth and excellence of the latter, that all things are to be done away, and all things are become new. To obliterate all our present affections by simply expunging them, so as to leave the seat of them unoccupied, would be to destroy the old character, and to substitute no new character in its place. But when they take their departure upon the ingress of others, when they resign their sway to the power and the predominance of new affections, when, abandoning the heart to solitude, they merely give place to a successor who turns it into as busy a residence of desire, and interest, and expectation as before—there is nothing in all this to thwart or to overthrow any of the laws of our sentient nature—and we see how, in fullest accordance with the mechanism of the heart, a great moral revolution may be made to take place upon it. This, we trust, will explain the operation of that charm which accompanies the effectual preaching of the gospel. The love of God, and the love of the world, are two affections, not merely in a state of rivalship, but in a state of enmity—and that so irreconcilable that they can not dwell together in the same bosom. We have already affirmed how impossible it were for the heart, by any innate elasticity of its own, to cast the world away from it, and thus reduce itself to a wilderness. The heart is not so constituted, and the only way to dispossess it of an old affection is by the expulsive power of a new one. Nothing can exceed the magnitude of the required change in a man’s character, when bidden, as he is in the New Testament, not to love the world; no, nor any of the things that are in the world, for this so comprehends all that is dear to him in existence as to be equivalent to a command of self-annihilation. But the same revelation which dictates so mighty an obedience, places within our reach as mighty an instrument of obedience.