Whence the Holy Scriptures derive their dignity and authority

The Belgic Confession of Faith

Article 5: Whence the Holy Scriptures Derive Their Dignity and Authority

We receive all these books, and these only, as holy and canonical, for the regulation, foundation, and confirmation of our faith; believing without any doubt all things contained in them, not so much because the Church receives and approves them as such, but more especially because the Holy Spirit witnesses in our hearts that they are from God, and also because they carry the evidence thereof in themselves. For the very blind are able to perceive that the things foretold in them are being fulfilled.