1. That it began when Christ, the Substance, was exhibited. He is called the Substance thereof, without any particular limitation of the word; and therefore we may understand thereby, either that he was the Substance of the ceremonial law, as all the promises and types thereof had a peculiar reference to him; and, as the apostle says, _To him give all the prophets witness_, Acts x. 43. or else he may be considered as the Substance of the New Testament-dispensation, the subject-matter of the ministry of the gospel. Thus the apostle speaks of _Christ crucified_, as the principal thing which _he determined to know_, or insist on, in the exercise of his ministry, and that with good reason, since all gospel-doctrines were designed to lead us to him, and set forth his glory, as the Fountain and Author of our salvation, 1 Cor. i. 23. chap. ii. 2. And both the seals of the new covenant, namely, Baptism, and the Lord’s Supper, signify that salvation which we enjoy, or hope for, by Christ, our consecration to him, and communion with him: thus he is truly styled the substance of both the dispensations of the covenant; the former looked forward, and pointed out Christ to come, as the object of the church’s desire and expectation; the latter represents him as being come, and so the object of our joy and thankfulness, for the blessings which he has procured for us. And this leads us to consider when it was that the New Testament-dispensation commenced, which is here said to be upon Christ’s being exhibited. Christ’s exhibition implies in it, either his public appearing when he was made flesh, and dwelt amongst us, or else it has a particular respect to the time when he first entered on his public ministry and went about doing good, confirming his mission by uncontested miracles: this he did immediately after his baptism, whereby he appeared to be the Person, whose coming the prophets had foretold, and whom John the Baptist had pointed at, and given the world ground to expect that he would immediately shew himself, in a public manner to them which he did accordingly. This appearing of Christ, was like the sun’s rising after a night of darkness, and therefore, in some respects, the gospel-dispensation might be said to begin then; nevertheless, in propriety of speaking, it could not be said fully to commence till Christ’s resurrection: then it was that the ceremonial law ceased, all the types and ordinances thereof having had their accomplishment in him. Thus the prophet Daniel speaks first of Christ’s _being cut off_, and thereby _confirming the covenant_, and then of the _sacrifice and oblation’s ceasing_, Dan. ix. 26, 27. and, when that dispensation was at an end, the gospel dispensation immediately succeeded it. We are now to consider,