Observ. 8. That divine truth is mysterious; “According to the revelation of the mystery, Christ manifested in the flesh.” The whole scheme of godliness is a mystery. No man or angel could imagine how two natures so distant as the Divine and human should be united; how the same person should be criminal and righteous; how a just God should have a satisfaction, and sinful man a justification; how the sin should be punished, and the sinner saved. None could imagine such a way of justification as the apostle in this epistle declares: it was a mystery when hid under the shadows of the law, and a mystery to the prophets when it sounded from their mouths; they searched it, without being able to comprehend it (1 Peter, i. 10, 11.) If it be a mystery, it is humbly to be submitted to: mysteries surmount human reason. The study of the gospel must not be with a yawning and careless frame. Trades, youcall mysteries, are not learned sleeping and nodding: diligence is required; we must be disciples at God’s feet. As it had God for the author, so we must have God for the teacher of it; the contrivance was his, and the illumination of our minds must be from him. As God only manifested the gospel, so he can only open our eyes to see the mysteries of Christ in it. In verse 26 we may observe,

1. The Scriptures of the Old Testament verify the substance of the New, and the New doth evidence the authority of the Old, by the Scriptures of the prophets made known. The Old Testament credits the New, and the New illustrates the Old. The New Testament is a comment upon the prophetic part of the Old. The Old shews the promises and predictions of God, and the New shews the performance. What was foretold in the Old, is fulfilled in the New; the predictions are cleared by the events. The predictions of the Old are divine, because they are above the reason of man to foreknow; none but an infinite knowledge could foretel them, because none but an infinite wisdom could order all things for the accomplishment of them. The Christian religion hath, then, the surest foundation, since the Scriptures of the prophets, wherein it is foretold, are of undoubted antiquity, and owned by the Jews and many heathens, which are and were the great enemies of Christ. The Old Testament is therefore to be read for the strengthening of our faith. Our blessed Saviour himself draws the streams of his doctrine from the Old Testament: he clears up the promise of eternal life, and the doctrine of the resurrection, from the words of the covenant, “I am the God of Abraham,” &c. (Matt. xxii. 32.) And our apostle clears up the doctrine of justification by faith from God’s covenant with Abraham (Rom. iv.) It must be read, and it must be read as it is writ: it was writ to a gospel end, it must be studied with a gospel spirit. The Old Testament was writ to give credit to the New, when it should be manifested in the world. It must be read by us to give strength to our faith, and establish us in the doctrine of Christianity. How many view it as a bare story, an almanack out of date, and regard it as a dry bone, without sucking from it the evangelical marrow! Christ is, in Genesis, Abraham’s seed; in David’s psalms and the prophets, the Messiah and Redeemer of the world.

2. Observe, The antiquity of the gospel is made manifest by the Scriptures of the prophets. It was of as ancient a date as any prophecy: the first prophecy was nothing else but a gospel charter; it was not made at the incarnation of Christ, but made manifest. It then rose up to its meridian lustre, and sprung out of the clouds, wherewith it was before obscured. The gospel was preached to the ancients by the prophets, as well as to the Gentiles by the apostles (Heb. iv. 2); “Unto us was the gospel preached, as well as unto them.” To them first, to us after; to them indeed more cloudy, to us more clear; but they as well as we, were evangelized, as the word signifies. The covenant of grace was the same in the writings of the prophets, and the declarations of the evangelists and apostles. Though by our Saviour’s incarnation, the gospel light was clearer, and by his ascension, the effusions of the Spiritfuller and stronger; yet the believers under the Old Testament, saw Christ in the swaddling bands of legal ceremonies, and the lattice of prophetical writings; they could not else offer one sacrifice, or read one prophecy with a faith of the right stamp. Abraham’s justifying faith had Christ for its object, though it was not so explicit as ours, because the manifestation was not so clear as ours.

3. All truth is to be drawn from Scripture. The apostle refers them here to the gospel and the prophets: the Scripture is the source of divine knowledge; not the traditions of men, nor reason separate from Scripture. Whosoever brings another doctrine, coins another Christ; nothing is to be added to what is written, nothing detracted from it. He doth not send us for truth, to the puddles of human inventions, to the enthusiasms of our brain; not to the See of Rome, no, nor to the instructions of angels; but the writings of the prophets, as they clear up the declarations of the apostles. The church of Rome is not made here the standard of truth: but the Scriptures of the prophets are to be the touch‑stone to the Romans, for the trial of the truth of the gospel.

4. How great is the goodness of God! The borders of grace are enlarged to the Gentiles, and not hid under the skirts of the Jews. He that was so long the God of the Jews, is now also manifest to be the God of the Gentiles: the gospel is now made known to all nations, according to the commandment of the everlasting God. Not only in a way of common providence, but special grace; in calling them to the knowledge of himself, and a justification of them by faith, he hath brought strangers to him, to the adoption of children, and lodged them under the wings of the covenant, that were before alienated from him through the universal corruption of nature. Now he hath manifested himself a God of truth, mindful of his promise in blessing all nations in the seed of Abraham. The fury of devils, and the violence of men could not hinder the propagation of the gospel: its light hath been dispersed as far as that of the sun; and that grace that founded in the Gentile’s ears, hath bent many of their hearts to the obedience of it.

5. Observe that libertinism and licentiousness find no encouragement in the gospel. It was made known to all nations for the obedience of faith. The goodness of God is published, that our enmity to him may be parted with. Christ’s righteousness is not offered to us to be put on, that we may roll more warmly in our lusts. The doctrine of grace commands us to give up ourselves to Christ, to be accepted through him, and to be ruled by him. Obedience is due to God, as a sovereign lord in his law; and it is due out of gratitude, as he is a God of grace in the gospel. The discovery of a further perfection in God weakens not the right of another, nor the obligation of the duty the former attribute claims at our hands. The gospel frees us from the curse, but not from the duty and service: “We are delivered from the hands of our enemies, that we might serve God in holiness and righteousness” (Luke i. 74). “This is the will of God” in the gospel, “even our sanctification.” When a prince strikes off a malefactor’s chains, though he deliver him from the punishment of his crime, he frees him not from the duty ofa subject: his pardon adds a greater obligation than his protection did before, while he was loyal. Christ’s righteousness gives us a title to heaven; but there must be a holiness to give us a fitness for heaven.

6. Observe, that evangelical obedience, or the obedience of Faith, is only acceptable to God. Obedience of faith; genitivus speciei, noting the kind of obedience God requires; an obedience springing from faith, animated and influenced by faith. Not obedience of faith, as though faith were the rule, and the law were abrogated; but to the law as a rule, and from faith as a principle. There is no true obedience before faith (Heb. xi. 6.) “Without faith it is impossible to please God;” and therefore without faith impossible to obey him. A good work cannot proceed from a defiled mind and conscience; and without faith every man’s mind is darkened, and his conscience polluted (Tit. i. 15). Faith is the band of union to Christ, and obedience is the fruit of union; we cannot bring forth fruit without being branches (John xv. 4, 5), and we cannot be branches without believing. Legitimate fruit follows upon marriage to Christ, not before it (Rom. vii. 4). “That you should be married to another, even to him that is raised from the dead, that you should bring forth fruit unto God.” All fruit before marriage is bastard, and bastards were excluded from the sanctuary. Our persons must be first accepted in Christ, before our services can be acceptable; those works are not acceptable where the person is not pardoned. Good works flow from a pure heart; but the heart cannot be pure before faith. All the good works reckoned up in the eleventh chapter of the Hebrews were from this spring; those heroes first believed and then obeyed. By faith Abel was righteous before God, without it his sacrifice had been no better than Cain’s: by faith Enoch pleased God, and had a divine testimony to his obedience before his translation; by faith Abraham offered up Isaac, without which he had been no better than a murderer. All obedience hath its root in faith, and is not done in our own strength, but in the strength and virtue of another, of Christ, whom God hath set forth as our head and root.

7. Observe, faith and obedience are distinct, though inseparable: “The obedience of faith.” Faith, indeed, is obedience to a gospel command, which enjoins us to believe; but it is not all our obedience. Justification and sanctification are distinct acts of God; justification respects the person, sanctification the nature; justification is first in order of nature, and sanctification follows: they are distinct, but inseparable; every justified person hath a sanctified nature, and every sanctified nature supposeth a justified person. So faith and obedience are distinct: faith as the principle, obedience as the product; faith as the cause, obedience as the effect; the cause and the effect are not the same. By faith we own Christ as our Lord: by obedience we regulate ourselves according to his command. The acceptance of the relation to him as a subject, precedes the performance of our duty: by faith we receive his law, and by obedience we fulfil it. Faith makes us God’s children (Gal. iii. 26). Obedience manifests us to be Christ’s disciples (John xv. 8). Faith isthe touchstone of obedience; the touchstone, and that which is tried by it, are not the same. But though they are distinct, yet they are inseparable. Faith and obedience are joined together; obedience follows faith at the heels. Faith purifies the heart, and a pure heart cannot be without pure actions. Faith unites us to Christ, whereby we partake of his life; and a living branch cannot be without fruit in its season, and “much fruit” (John xv. 5), and that naturally from a “newness of spirit” (Rom. vii. 9); not constrained by the rigors of the law, but drawn forth from a sweetness of love; for faith works by love. The love of God is the strong motive, and love to God is the quickening principle; as there can be no obedience without faith, so no faith without obedience. After all this, the apostle ends with the celebration of the wisdom of God; “To God only wise, be glory, through Jesus Christ forever.” The rich discovery of the gospel cannot be thought of, by a gracious soul, without a return of praise to God, and admiration of his singular wisdom.

Wise God. His power before, and his wisdom here, are mentioned in conjunction (in which his goodness is included, as interested in his establishing power) as the ground of all the glory and praise God hath from his creatures.

Only wise. As Christ saith (Matt. xix. 17), “None is good, but God;” so the apostle saith, None wise, but God. As all creatures are unclean in regard of his purity, so they are all fools in regard of his wisdom; yea, the glorious angels themselves (Job iv. 18). Wisdom is the royalty of God; the proper dialect of all his ways and works. No creature can lay claim to it; he is so wise, that he is wisdom itself.