1. The authority of Scripture derived not from men, but from the Spirit of God. Objection, That Scripture depends on the decision of the Church. Refutation, I. The truth of God would thus be subjected to the will of man. II. It is insulting to the Holy Spirit. III. It establishes a tyranny in the Church. IV. It forms a mass of errors. V. It subverts conscience. VI. It exposes our faith to the scoffs of the profane.
2. Another reply to the objection drawn from the words of the Apostle Paul. Solution of the difficulties started by opponents. A second objection refuted.
3. A third objection founded on a sentiment of Augustine considered.
4. Conclusion, That the authority of Scripture is founded on its being spoken by God. This confirmed by the conscience of the godly, and the consent of all men of the least candour. A fourth objection common in the mouths of the profane. Refutation.
5. Last and necessary conclusion, That the authority of Scripture is sealed on the hearts of believers by the testimony of the Holy Spirit. The certainty of this testimony. Confirmation of it from a passage of Isaiah, and the experience of believers. Also, from another passage of Isaiah.
1. Before proceeding farther, it seems proper to make some observations on the authority of Scripture, in order that our minds may not only be prepared to receive it with reverence, but be divested of all doubt.
When that which professes to be the Word of God is acknowledged to be so, no person, unless devoid of common sense and the feelings of a man, will have the desperate hardihood to refuse credit to the speaker. But since no daily responses are given from heaven, and the Scriptures are the only records in which God has been pleased to consign his truth to perpetual remembrance, the full authority which they ought to possess with the faithful is not recognised, unless they are believed to have come from heaven, as directly as if God had been heard giving utterance to them. This subject well deserves to be treated more at large, and pondered more accurately. But my readers will pardon me for having more regard to what my plan admits than to what the extent of this topic requires.
A most pernicious error has very generally prevailed -- viz. that Scripture is of importance only in so far as conceded to it by the suffrage of the Church; as if the eternal and inviolable truth of God could depend on the will of men. With great insult to the Holy Spirit, it is asked, who can assure us that the Scriptures proceeded from God; who guarantee that they have come down safe and unimpaired to our times; who persuade us that this book is to be received with reverence, and that one expunged from the list, did not the Church regulate all these things with certainty? On the determination of the Church, therefore, it is said, depend both the reverence which is due to Scripture, and the books which are to be admitted into the canon. Thus profane men, seeking, under the pretext of the Church, to introduce unbridled tyranny, care not in what absurdities they entangle themselves and others, provided they extort from the simple this one acknowledgement -- viz. that there is nothing which the Church cannot do. But what is to become of miserable consciences in quest of some solid assurance of eternal life, if all the promises with regard to it have no better support than man's Judgment? On being told so, will they cease to doubt and tremble? On the other hand, to what jeers of the wicked is our faith subjected -- into how great suspicion is it brought with all, if believed to have only a precarious authority lent to it by the good will of men?
2. These ravings are admirably refuted by a single expression of an apostle. Paul testifies that the Church is "built on the foundation of the apostles and prophets," (Eph.2:20). If the doctrine of the apostles and prophets is the foundation of the Church, the former must have had its certainty before the latter began to exist. Nor is there any room for the cavil, that though the Church derives her first beginning from thence, it still remains doubtful what writings are to be attributed to the apostles and prophets, until her Judgment is interposed. For if the Christian Church was founded at first on the writings of the prophets, and the preaching of the apostles, that doctrine, wheresoever it may be found, was certainly ascertained and sanctioned antecedently to the Church, since, but for this, the Church herself never could have existed.  Nothings therefore can be more absurd than the fiction, that the power of judging Scripture is in the Church, and that on her nod its certainty depends. When the Church receives it, and gives it the stamp of her authority, she does not make that authentic which was otherwise doubtful or controverted but, acknowledging it as the truth of God, she, as in duty bounds shows her reverence by an unhesitating assent. As to the question, How shall we be persuaded that it came from God without recurring to a decree of the Church? it is just the same as if it were asked, How shall we learn to distinguish light from darkness, white from black, sweet from bitter? Scripture bears upon the face of it as clear evidence of its truth, as white and black do of their colour, sweet and bitter of their taste.
3. I am aware it is usual to quote a sentence of Augustine in which he says that he would not believe the gospel, were he not moved by the authority of the Church (Aug. Cont. Epist. Fundament. c.5). But it is easy to discover from the context, how inaccurate and unfair it is to give it such a meaning. He was reasoning against the Manichees, who insisted on being implicitly believed, alleging that they had the truth, though they did not show they had. But as they pretended to appeal to the gospel in support of Manes, he asks what they would do if they fell in with a man who did not even believe the gospel -- what kind of argument they would use to bring him over to their opinion. He afterwards adds, "But I would not believe the gospel," &c.; meaning, that were he a stranger to the faith, the only thing which could induce him to embrace the gospel would be the authority of the Church. And is it any thing wonderful, that one who does not know Christ should pay respect to men?
Augustine, therefore, does not here say that the faith of the godly is founded on the authority of the Church; nor does he mean that the certainty of the gospel depends upon it; he merely says that unbelievers would have no certainty of the gospel, so as thereby to win Christ, were they not influenced by the consent of the Church. And he clearly shows this to be his meaning, by thus expressing himself a little before: "When I have praised my own creed, and ridiculed yours, who do you suppose is to judge between us; or what more is to be done than to quit those who, inviting us to certainty, afterwards command us to believe uncertainty, and follow those who invite us, in the first instance, to believe what we are not yet able to comprehend, that waxing stronger through faith itself, we may become able to understand what we believe -- no longer men, but God himself internally strengthening and illuminating our minds? These unquestionably are the words of Augustine (August. Cont. Epist. Fundament. cap.4); and the obvious inference from them is, that this holy man had no intention to suspend our faith in Scripture on the nod or decision of the Church,  but only to intimate (what we too admit to be true) that those who are not yet enlightened by the Spirit of God, become teachable by reverence for the Church, and thus submit to learn the faith of Christ from the gospel. In this way, though the authority of the Church leads us on, and prepares us to believe in the gospel, it is plain that Augustine would have the certainty of the godly to rest on a very different foundation. 
At the same time, I deny not that he often presses the Manichees with the consent of the whole Church, while arguing in support of the Scriptures, which they rejected. Hence he upbraids Faustus (lib.32) for not submitting to evangelical truth -- truth so well founded, so firmly established, so gloriously renowned, and handed down by sure succession from the days of the apostles. But he nowhere insinuates that the authority which we give to the Scriptures depends on the definitions or devices of men. He only brings forward the universal Judgment of the Church, as a point most pertinent to the cause, and one, moreover, in which he had the advantage of his opponents. Any one who desires to see this more fully proved may read his short treatises, De Utilitate Credendi (The Advantages of Believing), where it will be found that the only facility of believing which he recommends is that which affords an introduction, and forms a fit commencement to inquiry; while he declares that we ought not to be satisfied with opinion, but to strive after substantial truth.
4. It is necessary to attend to what I lately said, that our faith in doctrine is not established until we have a perfect conviction that God is its author. Hence, the highest proof of Scripture is uniformly taken from the character of him whose Word it is. The prophets and apostles boast not their own acuteness or any qualities which win credit to speakers, nor do they dwell on reasons; but they appeal to the sacred name of God, in order that the whole world may be compelled to submission. The next thing to be considered is, how it appears not probable merely, but certain, that the name of God is neither rashly nor cunningly pretended. If, then, we would consult most effectually for our consciences, and save them from being driven about in a whirl of uncertainty, from wavering, and even stumbling at the smallest obstacle, our conviction of the truth of Scripture must be derived from a higher source than human conjectures, Judgments, or reasons; namely, the secret testimony of the Spirit. It is true, indeed, that if we choose to proceed in the way of arguments it is easy to establish, by evidence of various kinds, that if there is a God in heaven, the Law, the Prophecies, and the Gospel, proceeded from him. Nay, although learned men, and men of the greatest talent, should take the opposite side, summoning and ostentatiously displaying all the powers of their genius in the discussion; if they are not possessed of shameless effrontery, they will be compelled to confess that the Scripture exhibits clear evidence of its being spoken by God, and, consequently, of its containing his heavenly doctrine. We shall see a little farther on, that the volume of sacred Scripture very far surpasses all other writings. Nay, if we look at it with clear eyes, and unblessed Judgment, it will forthwith present itself with a divine majesty which will subdue our presumptuous opposition, and force us to do it homage.
Still, however, it is preposterous to attempt, by discussion, to rear up a full faith in Scripture. True, were I called to contend with the craftiest despisers of God, I trust, though I am not possessed of the highest ability or eloquence, I should not find it difficult to stop their obstreperous mouths; I could, without much ado, put down the boastings which they mutter in corners, were anything to be gained by refuting their cavils. But although we may maintain the sacred Word of God against gainsayers, it does not follow that we shall forthwith implant the certainty which faith requires in their hearts. Profane men think that religion rests only on opinion, and, therefore, that they may not believe foolishly, or on slight grounds, desire and insist to have it proved by reason that Moses and the prophets were divinely inspired. But I answer, that the testimony of the Spirit is superior to reason. For as God alone can properly bear witness to his own words, so these words will not obtain full credit in the hearts of men, until they are sealed by the inward testimony of the Spirit. The same Spirit, therefore, who spoke by the mouth of the prophets, must penetrate our hearts, in order to convince us that they faithfully delivered the message with which they were divinely entrusted. This connection is most aptly expressed by Isaiah in these words, "My Spirit that is upon thee, and my words which I have put in thy mouth, shall not depart out of thy mouth, nor out of the mouth of thy seed, nor out of the mouth of thy seed's seed, saith the Lord, from henceforth and for ever," (Isa.59:21). Some worthy persons feel disconcerted, because, while the wicked murmur with impunity at the Word of God, they have not a clear proof at hand to silence them, forgetting that the Spirit is called an earnest and seal to confirm the faith of the godly, for this very reason, that, until he enlightens their minds, they are tossed to and fro in a sea of doubts.
5. Let it therefore be held as fixed, that those who are inwardly taught by the Holy Spirit acquiesce implicitly in Scripture; that Scripture, carrying its own evidence along with it, deigns not to submit to proofs and arguments, but owes the full conviction with which we ought to receive it to the testimony of the Spirit.  Enlightened by him, we no longer believe, either on our own Judgment or that of others, that the Scriptures are from God; but, in a way superior to human Judgment, feel perfectly assured -- as much so as if we beheld the divine image visibly impressed on it -- that it came to us, by the instrumentality of men, from the very mouth of God. We ask not for proofs or probabilities on which to rest our Judgment, but we subject our intellect and Judgment to it as too transcendent for us to estimate. This, however, we do, not in the manner in which some are wont to fasten on an unknown object, which, as soon as known, displeases, but because we have a thorough conviction that, in holding it, we hold unassailable truth; not like miserable men, whose minds are enslaved by superstition, but because we feel a divine energy living and breathing in it -- an energy by which we are drawn and animated to obey it, willingly indeed, and knowingly, but more vividly and effectually than could be done by human will or knowledge. Hence, God most justly exclaims by the mouth of Isaiah, "Ye are my witnesses, saith the Lord, and my servant whom I have chosen, that ye may know and believe me, and understand that I am he," (Isa.43:10).
Such, then, is a conviction which asks not for reasons; such, a knowledge which accords with the highest reason, namely knowledge in which the mind rests more firmly and securely than in any reasons; such in fine, the conviction which revelation from heaven alone can produce. I say nothing more than every believer experiences in himself, though my words fall far short of the reality. I do not dwell on this subject at present, because we will return to it again: only let us now understand that the only true faith is that which the Spirit of God seals on our hearts. Nay, the modest and teachable reader will find a sufficient reason in the promise contained in Isaiah, that all the children of the renovated Church "shall be taught of the Lord," (Isaiah 54:13). This singular privilege God bestows on his elect only, whom he separates from the rest of mankind. For what is the beginning of true doctrine but prompt alacrity to hear the Word of God? And God, by the mouth of Moses, thus demands to be heard: "It is not in heavens that thou shouldest say, Who shall go up for us to heaven, and bring it unto us, that we may hear and do it? But the word is very nigh unto thee, in thy mouth and in thy heart," (Deut.30:12, 14). God having been pleased to reserve the treasure of intelligence for his children, no wonder that so much ignorance and stupidity is seen in the generality of mankind. In the generality, I include even those specially chosen, until they are ingrafted into the body of the Church. Isaiah, moreover, while reminding us that the prophetical doctrine would prove incredible not only to strangers, but also to the Jews, who were desirous to be thought of the household of God, subjoins the reason, when he asks, "To whom has the arm of the Lord been revealed?" (Isaiah 53:1). If at any time, then we are troubled at the small number of those who believe, let us, on the other hand, call to mind, that none comprehend the mysteries of God save those to whom it is given.
 The French adds, "Comme le fondement va deuant l'edifice;"--as the foundation goes before the house.  The French adds,"La destournant du seul fondement qu'elle a en l'Escriture;"--diverting it from the only foundation which is has in scripture.  Augustin. De Ordine, lib. 2 c. 9 "Ad discendum dupliciter movemur, auctoritate atque ratione : tempore auctoritas, re autem ratio prior est," &c. "Itaque quamquam bonorum auctoritas imperitae multitudini videatur esse salubrior, ratio vero aptior eruditis: tamen quia nullus hominum nisi ex imperito peritus fit, &c., evenit ut omnibus bona, magna, occulta discere cupientibus, non aperiat nisi auctoritas januam," &c. He has many other excellent things to the same effect.  The French adds, "Car jacoit qu'en sa propre majesté elle ait assez de quoy estre reuerée, neantmoins elle commence lors à nous vrayement toucher, quand elle est scellée en nos coueurs par le Sainct Esprit."--For though in its own majesty it has enough to command reverence, nevertheless, it then begins truly to touch us when it is sealed in our hearts by the Holy Spirit.
 The French adds,"La destournant du seul fondement qu'elle a en l'Escriture;"--diverting it from the only foundation which is has in scripture.
 Augustin. De Ordine, lib. 2 c. 9 "Ad discendum dupliciter movemur, auctoritate atque ratione : tempore auctoritas, re autem ratio prior est," &c. "Itaque quamquam bonorum auctoritas imperitae multitudini videatur esse salubrior, ratio vero aptior eruditis: tamen quia nullus hominum nisi ex imperito peritus fit, &c., evenit ut omnibus bona, magna, occulta discere cupientibus, non aperiat nisi auctoritas januam," &c. He has many other excellent things to the same effect.
 The French adds, "Car jacoit qu'en sa propre majesté elle ait assez de quoy estre reuerée, neantmoins elle commence lors à nous vrayement toucher, quand elle est scellée en nos coueurs par le Sainct Esprit."--For though in its own majesty it has enough to command reverence, nevertheless, it then begins truly to touch us when it is sealed in our hearts by the Holy Spirit.