These excerpts perfectly express the view of this website concerning this subject:
Article 5: The Authority of Scripture
We receive all these books and these only as holy and canonical, for the regulating, founding, and establishing of our faith.
And we believe without a doubt all things contained in them-- not so much because the church receives and approves them as such but above all because the Holy Spirit testifies in our hearts that they are from God, and also because they prove themselves to be from God.
For even the blind themselves are able to see that the things predicted in them do happen.
Article 7: The Sufficiency of Scripture
We believe that this Holy Scripture contains the will of God completely and that everything one must believe to be saved is sufficiently taught in it. For since the entire manner of service which God requires of us is described in it at great length, no one-- even an apostle or an angel from heaven, as Paul says, (Gal 1:8)-- ought to teach other than what the Holy Scriptures have already taught us. For since it is forbidden to add to or subtract from the Word of God, (Deut 12:32 Rev 22:18-19), this plainly demonstrates that the teaching is perfect and complete in all respects.
Therefore we must not consider human writings-- no matter how holy their authors may have been-- equal to the divine writings; nor may we put custom, nor the majority, nor age, nor the passage of time or persons, nor councils, decrees, or official decisions above the truth of God, for truth is above everything else.
For all human beings are liars by nature and more vain than vanity itself.
Therefore we reject with all our hearts everything that does not agree with this infallible rule, as we are taught to do by the apostles when they say, "Test the spirits to see if they are of God," (1 John 4:1), and also, "If anyone comes to you and does not bring this teaching, do not receive him into your house," (2 John 10).
The Westminster Confession of Faith
Of the holy Scripture.
I. Although the light of nature, and the works of creation and providence, do so far manifest the goodness, wisdom, and power of God, as to leave men inexcusable; yet are they not sufficient to give that knowledge of God, and of his will, which is necessary unto salvation; therefore it pleased the Lord, at sundry times, and in divers manners, to reveal himself, and to declare that his will unto his Church; and afterwards for the better preserving and propagating of the truth, and for the more sure establishment and comfort of the Church against the corruption of the flesh, and the malice of Satan and of the world, to commit the same wholly unto writing; which maketh the holy Scripture to be most necessary; those former ways of God's revealing his will unto his people being now ceased....
IV. The authority of the holy Scripture, for which it ought to be believed and obeyed, dependeth not upon the testimony of any man or Church, but wholly upon God (who is truth itself), the Author thereof; and therefore it is to be received, because it is the Word of God.
IX. The infallible rule of interpretation of Scripture, is the Scripture itself; and therefore, when there is a question about the true and full sense of any scripture (which is not manifold, but one), it may be searched and known by other places that speak more clearly.
X. The Supreme Judge, by which all controversies of religion are to be determined, and all decrees of councils, opinions of ancient writers, doctrines of men, and private spirits, are to be examined, and in whose sentence we are to rest, can be no other but the Holy Spirit speaking in the Scripture.