Institutes of Elenctic Theology by Francis Turretin

That the authority of the Scriptures either as to itself or as to us does not depend upon the testimony of the church is proved: (1) because the church is built upon the Scripture (Eph. 2:20) and borrows all authority from it. Our opponents cannot deny this since, when we ask them about the church, they quickly fly to the Scriptures to prove it. Therefore the church cannot recommend the authority of Scripture either as to itself or as to us, unless we wish to make the cause depend upon the effect, the principle upon that which derived from it and the foundation upon the edifice. Nor ought the objection to be brought up here (that both may be true) that the church borrows its authority from the Scriptures, and the Scriptures in turn from the church (just as John bore testimony to Christ who also himself gave testimony to John). For it is one thing to give testimony to someone as a minister, as John testified concerning Christ, that through him (di'autou), not on account of him (di'auton), the Jews might believe (Jn. 1:7). It is quite a different thing to give authority to him as a lord which Christ did toJohn. (2) The authority of the church would be prior to that of the Scriptures and so would be the first thing to be believed (upon which our faith at first would depend and into which it would finally be resolved), which our opponents, who make the authority of the church depend upon Scripture, would not admit. (3) A manifest circle would be made since the authority of the church is proved from Scripture, and in turn the authority of the Scripture from the church. (4) Our opponents are not yet agreed as to what is meant by the church'whether the modern or the ancient, the collective or the representative, a particular or the universal; or what is the act testifying concerning the authority of Scripture (whether enacted by some judicial sentence or exercised by a continuous and successive tradition). (5)A fallible and human testimony (as that of the church) cannot form the foundation of divine faith. And if God now speaks through the church, does it therefore follow that she is infallible because there is one kind of inspiration which is special and extraordinary (such as made the apostles and prophets infallible [anamartetous], and of which Christ speaks properly when he says that the Holy Spirit would lead the apostles into all truth, Jn. 16:13*); another common and ordinary which does not make pastors inspired (theopneustous).

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