As soon as we clearly see what the kingdom of God is, we see also that by nature we do not belong to it. The kingdom of God so far as man is concerned is a state of willing subjection to Him—a state in which we are in our right relation to Him. All irrational creatures obey God and do His will: the sun runs his course with an exactness and punctuality we cannot rival; the grace and strength of many of the lower animals, their marvellous instincts and aptitudes, are so superior to anything in ourselves that we cannot even comprehend them. But what we have as our speciality is to render to God a willing service; to understand His purposes and enter sympathetically into them. The lower creatures obey a law impressed upon their nature; they cannot sin; their performance of God’s will is a tribute to the power which made them so skilfully, but it lacks all conscious recognition of His worthiness to be served and all knowledge of His object in creation. It is God serving Himself: He made them so, and therefore they do His will. So it is with men who merely obey their nature: they may do kindly, noble, heroic actions, but they lack all reference to God; and however excellent these actions are, they give no guarantee that the men who do them would sympathize with God in all things, and do His will gladly. Indeed, to establish the proposition that flesh or nature does not give us entrance into God’s kingdom, we need go no further than our own consciousness. Remove the restraints which grace puts upon our nature, and we are aware that we are not in sympathy with God, fond of His will, disposed for His service. Let nature have its swing, and every man knows it is not the kingdom of God it takes him to. To all men it is natural to eat, drink, sleep, think; we are born to these things, and need to put no constraint on our nature to do them; but can any man say it has come naturally to him to be what he ought to be to God? Do we not to this hour feel drawn away from God as if we were not in our element in His presence? Flesh, nature, in God’s presence is as much out of its element as a stone in the air or a fish out of water. Men who have had the deepest religious experience have seen it most clearly, and have felt, like Paul, that the flesh lusts against the spirit, and draws us ever back from entire submission to God and delight in Him.