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", who hath believed our report?" Isaiah says. For "faith cometh by hearing, rmd hearing by the word of God," saith the apostle. "How then shall they call on Him in whom they have not believed? And how shall they believe on Him whom they have not heard? And how shall they hear without a preacher? And how shall they preach except they be sent? As it is written, How beautiful are the feet of those that publish glad tidings of good things!" You see how he brings faith by hearing, and the preaching of the apostles, up to the word of the Lord, and to the Son of God. We do not yet understand the word of the Lord to be demonstration.

As, then, playing at ball not only depends on one throwing the ball skilfully, but it requires besides one to catch it dexterously, that the game may be gone through according to the rules for ball; so also is it the case that teaching is reliable when faith on the part of those who hear, being, so to speak, a sort of natural art, contributes to the process of learning. So also the earth co-operates, through its productive power, being fit for the sowing of the seed. For there is no good of the very best instruction without the exercise of the receptive faculty on the part of the learner, not even of prophecy, when there is the absence of docility on the part of those who hear. For dry twigs, being ready to receive the power of fire, are kindled with great ease; and the far-famed stone attracts steel through affinity, as the tear of the Succinum drains to itself twigs, and amber sets chaff in motion. And the substances attracted obey them, attracted by a subtle spirit, not as a cause, but as a concurring cause.

There being then a twofold species of vice—that characterized by craft and stealth, and that which leads and drives with violence—the divine Word cries, calling all together; knowing perfectly well those that will not obey;