Now, although it be true, that the love thus spoken of includes the whole of a sincerely benevolent propensity of the soul towards God and man; yet it may be considered, that it is evident from what has been before observed, that this propensity or inclination of the soul, when in sensible and vigorous exercise, becomes affection, and is no other than affec- tionate love. And surely it is such vigorous and fervent love which Christ speaks of, as the sum of all religion, when he speaks of loving God with all our hearts, with all our souls, and with all our minds, and our neighbor as ourselves, as the sum of all that was taught and prescribed in the law and the prophets. Indeed it cannot be supposed, when this affection of love is here, and in other Scriptures, spoken of as the sum of all religion, that hereby is meant the act, exclusive of the habit, or that the exercise of the understanding is excluded, which is implied in all reasonable affection. But it is doubtless true, and evident from these Scriptures, that the essence of all true religion lies in holy love; and that in this divine affection, and an habitual disposition to it, and that light which is the foundation of it, and those things which are the fruits of it, consists the whole of religion. From hence it clearly and certainly appears, that great part of true religion consists in the affections. For love is not only one of the affections, but it is the first and chief of the affections, and the fountain of all the affections. From love arises hatred of those things which are contrary to what we love, or which oppose and thwart us in those things that we delight in: and from the various exercises of love and hatred, according to the circumstances of the objects of these affections, as present or absent, certain or uncertain, probable or im- probable, arise all those other affections of desire, hope, fear, joy, grief, gratitude, anger, &c. From a vigorous, affectionate, and fervent love to God, will necessarily arise other religious affections; hence will arise an intense hatred and abhorrence of sin, fear of sin, and a dread of God's displeasure, gratitude to God for his goodness, complacence and joy in God, when God is graciously and sensibly present, and grief when he is absent, and a joyful hope when a future enjoyment of God is expected, and fervent zeal for the glory of God. And in like manner, from a fervent love to men, will arise all other virtuous affections towards men. 6. The religion of the most eminent saints we have an account of in the Scripture, con- sisted much in holy affections. I shall take particular notice of three eminent saints, who have expressed the frame and sentiments of their own hearts, and so described their own religion, and the manner of their intercourse with God, in the writings which they have left us, that are a part of the sacred canon. The first instance I shall take notice of, is David, that "man after God's own heart;" who has given us a lively portraiture of his religion in the book of Psalms. Those holy songs of his he has there left us, are nothing else but the expressions and breathings of devout and holy affections; such as an humble and fervent love to God, admiration of his glorious per- 18 Part I. Concerning the nature of the affections and their importance in…