The nature of man, in both parts of his soul--viz. intellect and will--cannot be better ascertained than by attending to the epithets applied to him in Scripture. If he is fully depicted (and it may easily be proved that he is) by the words of our Saviour, "that which is born of the flesh is flesh," (John 3:6), he must be a very miserable creature. For, as an apostle declares, "to be carnally minded is death," (Rom. 8:8), "It is enmity against God, and is not subject to the law of God, neither indeed can be." Is it true that the flesh is so perverse, that it is perpetually striving with all its might against God? that it cannot accord with the righteousness of the divine law? that, in short, it can beget nothing but the materials of death? Grant that there is nothing in human nature but flesh, and then extract something good out of it if you can. But it will be said, that the word flesh applies only to the sensual, and not to the higher part of the soul. This, however, is completely refuted by the words both of Christ and his apostle. The statement of our Lord is, that a man must be born again, because he is flesh. He requires not to be born again, with reference to the body. But a mind is not born again merely by having some portion of it reformed. It must be totally renewed. This is confirmed by the antithesis used in both passages. In the contrast between the Spirit and the flesh, there is nothing left of an intermediate nature. In this way, everything in man, which is not spiritual, falls under the denomination of carnal. But we have nothing of the Spirit except through regeneration. Everything, therefore, which we have from nature is flesh. Any possible doubt which might exist on the subject is removed by the words of Paul (Eph. 4:23), where, after a description of the old man, who, he says, "is corrupt according to the deceitful lusts," he bids us "be renewed in the spirit" of our mind. You see that he places unlawful and depraved desires not in the sensual part merely, but in the mind itself, and therefore requires that it should be renewed. Indeed, he had a little before drawn a picture of human nature, which shows that there is no part in which it is not perverted and corrupted. For when he says that the "Gentiles walk in the vanity of their mind, having the understanding darkened being alienated from the life of God through the ignorance that is in them, because of the blindness of their heart," (Eph. 4:17, 18), there can be no doubt that his words apply to all whom the Lord has not yet formed anew both to wisdom and righteousness. This is rendered more clear by the comparison which immediately follows, and by which he reminds believers that they "have not so learned Christ" these words implying that the grace of Christ is the only remedy for that blindness and its evil consequences. Thus, too, had Isaiah prophesied of the kingdom of Christ, when the Lord promised to the Church, that though darkness should "cover the earth, and gross darkness the people," yet that he should "arise" upon it, and "his glory" should be seen upon it (Isaiah 40:2). When it is thus declared that divine light is to arise on the Church alone, all without the Church is left in blindness and darkness. I will not enumerate all that occurs throughout Scripture, and particularly in the Psalms and Prophetical writings, as to the vanity of man. There is much in what David says, "Surely men of low degree are vanity, and men of high degree are a lie: to be laid in the balance, they are altogether lighter than vanity," (Ps. 62:10). The human mind receives a humbling blow when all the thoughts which proceed from it are derided as foolish, frivolous, perverse, and insane.