horton on sola scriptura

Michael Horton writes the following theses to summarize some of the issues regarding authority:

1. The Reformers did not separate sola scriptura (by Scripture alone) from solo Christo (Christ alone), sola gratia (by grace alone), sola fide (through faith alone). As Herman Bavinck said, “Faith in Scripture rises or falls with faith in Christ.” Revealed from heaven, the gospel message itself (Christ as the central content of Scripture) is as much the basis for the Bible’s authority as the fact that it comes from the Father through the inspiration of the Spirit. Jesus Christ, raised on the third day, certified his divine authority. Furthermore, he credited the Old Testament writings as “scripture,” equating the words of the prophets with the very word of God himself and commissioned his apostles to speak authoritatively in his name. Their words are his words; those who receive them also receive the Son and the Father. So Scripture is the authoritative Word of God because it comes from the unerring Father, concerning the Son, in the power of the Spirit. Neither the authority of the Bible nor that of the church can stand apart from the truth of Christ as he is clothed in his gospel.
2. Every covenant is contained in a canon (like a constitution). The biblical canon is the norm for the history of God’s saving purposes in Christ under the old and new covenants. The Old Testament canon closed with the end of the prophetic era, so that Jesus could mark a sharp division between Scripture and the traditions of the rabbis (Mk 7:8). The New Testament canon was closed at the end of the apostolic era, so that even during that era the Apostle Paul could warn the Corinthians against the “super-apostles” by urging, “Do not go beyond what is written” (1 Co 4:6). While the apostles were living, the churches were to “maintain the traditions even as I delivered them to you” (1 Co 11:2), “…either by our spoken word or by our letter” (2 Th 2:15). There were indeed written and unwritten traditions in the apostolic church, but only those that eventually found their way by the Spirit’s guidance into the New Testament are now for us the apostolic canon. The apostles (extraordinary ministers) laid the foundation and after them workers (ordinary ministers) build on that foundation (1 Co 3:10). The apostles could appeal to their own eye-witness, direct, and immediate vocation given to them by Christ, while they instructed ordinary pastors (like Timothy) to deliver to others what they had received from the apostles. As Calvin noted, Rome and the Anabaptists were ironically similar in that they affirmed a continuing apostolic office. In this way, both in effect made God’s Word subordinate to the supposedly inspired prophets and teachers of today.
3. Just as the extraordinary office of prophets and apostles is qualitatively distinct from that of ordinary ministers, the constitution (Scripture) is qualitatively distinct from the Spirit-illumined but non-inspired courts (tradition) that interpret it. Thus, Scripture is magisterial in its authority, while the church’s tradition of interpretation is ministerial.

The balance of the thesis is an brief history overview and an interesting read.