It is not the church (or the people of God) that determines which books are inspired by God and are thereby Scripture. The writings themselves are vested with the authority of God on the basis of divine inspiration. They are the Word of God because they were written under the Spirit’s inspiration. The people of God (the church for the New Testament, Israel for the Old Testament) merely recognize the authority present within those writings. Canonicity is based on the fact of inspiration, not the process or agency that did the collecting.
John MacArthur