David Wells reflects on the fact that apostolic Christianity was shaped into a set of clear teachings and doctrines:
Christianity, in these and texts like them, is described as the faith, the truth, the pattern of sound words, the traditions, the sound doctrine, and what was delivered in the beginning. This is what the apostles taught, it is what they believed, it is what they “delivered” to the church, it is what is “entrusted” to the church. Christians are those who “believe” this teaching, who “know” it, who “have” it, who “stand” in it, and who are “established” in it. The New Testament letters were written to remind believers about their responsibilities in relation to this teaching, this faith that has been delivered to the church in its final and completed form. The apostles, we read, write to “remind” them of it, urge them to “pay close attention” to it, to “stand firm” in it, to “follow” it, to “hold” onto it, to “guard” it as one might a precious jewel, and to contend earnestly for this truth.
Can we see the most basic point here? It is that the church in its earliest days was a learning community. What it was learning was the ways of God, his character, his acts, through the truth he had given and was giving them. This they knew was indispensable for a life of obedience in this world.
By contrast, all of this is conspicuous by its absence in much of the contemporary evangelical church. Knowledge of the Bible ranks low in how the born-again judge themselves. And the preaching of the Bible’s truth has all but disappeared from many churches. We are today walking away from what we see modeled for us in the book of Acts as God’s will for the church. (The Courage to Be Protestant, 84-85)