I. Suppose the gospel to be so manifestly filled with the proofs of its divinity that all hearts, even the most obdurate, could not refrain from yielding to its claims. Suppose it to be _self-evidencing_, in the same way and to the same extent, as the sun is self-evidencing by its shining, or fire by its known power to burn. In this case, no moral or intellectual disposition would be necessary in order to its reception. It could no more be denied than the light of the sun, or the consuming power of fire. But what, with such a gospel, would be man's position? Forced to assent to an imperious obligation, he would be, in relation to the gospel and to the salvation provided in it, nothing more than a machine, acting under the impulse of an irresistible necessity. There could, under these circumstances, be neither praise nor blame attached to him. He could no longer be accounted a moral agent--could not be regarded as free, inasmuch as it would not be possible for him to choose error or evil without obvious and startling folly. He could no longer be responsible, because he would have to yield to a necessity. There could be no free thought in his creed, no free love in his heart, and consequently no virtue in his life. II. Since, then, some disposition is necessary in order to a man's coming to the gospel, suppose that God had imposed an _intellectual_ qualification--such, for instance, as is required for the learning of art or of science, or for the understanding of any difficult problem in philosophy. Observe what in that case must follow. If, to discover the truth necessary to salvation, a large measure of natural genius or of accumulated knowledge be required, we must consider as excluded from salvation the immense majority of the human race! Men cannot in any large numbers abandon the common, legitimate, indispensable pursuits of secular life in order to become students of theology. Such an arrangement would shut out from heaven all who have neither time, nor fortune, nor energy of intellect sufficient to enable them to follow our profounder investigations. The poor man for want of means, the sick man for want of strength, the old man for want of time--all, being unable to explore and to make their own the prescribed science, would be lost! The fearfulness of the consequences shows how false the supposed principle must be. III. Take another supposition; viz., that, in order to a man's being convinced of the truth of the gospel, he should be required to purify his heart from all evil, so that with a clear moral vision he should be able to see the beauties which have been obscured by his sinful passions. Doubtless this means of appreciating Christianity would be efficacious, were it practicable. But it is not so; for evidently the _knowledge_ of the truth must precede the _practice_ of the truth. A creature without wings might as well be told that he should go to heaven on condition that he would fly thither!