J. A. Bengel, the great Pietist commentator on the Bible, concluded his comments on Acts this way: "Thou hast, O church, thy form [pattern]. It is thine to preserve it, and guard thy trust" (Bengel 1860:1:925). We must do this by examining Luke's portrait of a Spirit-filled community.
via biblegateway.com
We wouldn't agree on the specifics of that form, but many today deny there is a pattern to be found in the NT or in the book of Acts for the church. On that, Bengel was right.