The world then is the enemy of our souls; first, because, however innocent its pleasures, and praiseworthy its pursuits may be, they are likely to engross us, unless we are on our guard: and secondly, because in all its best pleasures, and noblest pursuits, the seeds of sin have been sown; an enemy hath done this; so that it is most difficult to enjoy the good without partaking of the evil also. As an orderly system of various ranks, with various pursuits and their several rewards, it is to be considered not sinful indeed, but dangerous to us. On the other hand, considered in reference to its principles and actual practices, it is really a sinful world. Accordingly, when we are bid in Scripture to shun the world, it is meant that we must be cautious, lest we love what is good in it too well, and lest we love the bad at all.--However, there is a mistaken notion sometimes entertained, that the world is some particular set of persons, and that to shun the world is to shun them; as if we could point out, as it were, with the finger, what is the world, and thus could easily rid ourselves of one of our three great enemies. Men, who are beset with this notion, are often great lovers of the world notwithstanding, while they think themselves at a distance from it altogether. They love its pleasures, and they yield to its principles, yet they speak strongly against men of the world, and avoid them. They act the part of superstitious people, who are afraid of seeing evil spirits in what are considered haunted places, while these spirits are busy at their hearts instead, and they do not suspect it.