The Doctrine of Justification by Faith

1. He undertook as they surety of the Covenant to answer for all the sins of those who are to be, and are made partakers of the Benefits of it. That is, to undergo the punishment due unto their sins; to make atonement for them, by offering himself a propitiatory sacrifice for the Expiation of their sins, redeeming them by the Price of his Blood from their state of misery and bondage under the Law and the Curse of it, Isa. 53.4, 5, 6, 10, Math. 20.28. 1 Tim. 2.6. 1 Cor. 6.20. Rom. 3.25, 26. Heb. 10.5, 6, 7, 8. Rom. 8.2, 3. 2 Cor. 5.19, 20, 21. Gal. 3.13. And this was absolutely ⟨p. 264⟩necessary that the Grace and Glory prepared in the Covenant might be communicated unto us. Without this undertaking of his, and performance of it, the Righteousness and Faithfulness of God would not permit, that sinners, such as had Apostatized from him, despised his Authority and rebelled against him, falling thereby under the sentence and curse of the Law, should again be received into his Favour, and made Partakers of Grace and Glory. This therefore the Lord Christ took upon himself, as the surety of the Covenant.

2. That those who were to be taken into this Covenant should receive Grace enabling them to comply with the Terms of it, fulfil its Conditions, and yield the Obedience which God required therein. For by the Ordination of God, he was to procure, and did merit and procure for them the Holy Spirit, and all needful supplies of Grace to make them new Creatures, and enable them to yield Obedience unto God from a new principle of spiritual Life and that faithfully unto the End. So was he the surety of this better Testament. But all things belonging hereunto will be handled at large in the place from whence as I said these are taken, as suitable unto our present occasion.