2. The Author of the human nature has not only given affections to men, but has made them very much the spring of men's actions. As the affections do not only necessarily belong to the human nature, but are a very great part of it; so (inasmuch as by regeneration persons are renewed in the whole man, and sanctified throughout) holy affections do not only ne- cessarily belong to true religion, but are a very great part of it. And as true religion is of a practical nature, and God hath so constituted the human nature, that the affections are very much the spring of men's actions, this also shows, that true religion must consist very much in the affections. Such is man's nature, that he is very inactive, any otherwise than he is influenced by some affection, either love or hatred, desire, hope, fear, or some other. These affections we see to be the springs that set men agoing, in all the affairs of life, and engage them in all their pursuits: these are the things that put men forward, and carry them along, in all their worldly business; and especially are men excited and animated by these, in all affairs wherein they are earnestly engaged, and which they pursue with vigor. We see the world of mankind to be exceeding busy and active; and the affections of men are the springs of the motion: take away all love and hatred, all hope and fear, all anger, zeal, and affectionate desire, and the world would be, in a great measure motionless and dead; there would be no such thing as activity amongst mankind, or any earnest pursuit whatsoever. It is affection that engages the covetous man, and him that is greedy of worldly profits, in his pursuits; and it is by the affections, that the ambitious man is put forward in pursuit of worldly glory; and it is the affections also that actuate the voluptuous man, in his pursuit of pleasure and sensual delights: the world continues, from age to age, in a continual commotion and agitation, in a pursuit of these things, but take away all affection, and the spring of all this motion would be gone, and the motion itself would cease. And as in worldly things, worldly affections are very much the spring of men’s motion and action; so in religious matters, the spring of their ac- tions is very much religious affection: he that has doctrinal knowledge and speculation only, without affection, never is engaged in the business of religion. 3. Nothing is more manifest in fact, than that the things of religion take hold of men's souls, no further than they affect them. There are multitudes that often hear the word of God, and therein hear of those things that are infinitely great and important, and that most nearly concern them, and all that is heard seems to be wholly ineffectual upon them, and to make no alteration in their disposition or behavior; and the reason is, they are not affected with what they hear. There are many that often hear of the glorious perfections of God, his almighty power and boundless wisdom, his infinite majesty, and that holiness of God, by which he is of purer eyes than to behold evil, and cannot look on iniquity, and the heavens are not pure in his sight, and of God's infinite goodness and mercy, and hear of the great works of God's wisdom, power and goodness, wherein there appear the admirable manifest- ations of these perfections; they hear particularly of the unspeakable love of God and Christ, 13 Part I. Concerning the nature of the affections and their importance in…