Acts of the Apostles plays a unique role in the unfolding New Covenant revelation that Jesus has given the church through his apostles. This commentary seeks to avoid two poles that are not easily avoided, even within the Reformed church. First, it strives to avoid an understanding of Acts as 'church in the good old days'. Such a primitivist approach to this biblical book can, for example, too easily lose sight of what in Acts is unique, unrepeatable, non-episodic, and once-for-all. Second, this commentary equally strives to avoid an understanding of Acts as a book that has nothing to say to the contemporary church. Acts is full of relevance and application to the contemporary church. Avoidance of these two poles may seem to be an impossible task, and it is all too easy to erect a false dilemma between an application-less redemptive-historical reading, and an application-oriented reading that sees little meaningful differences between the church in its apostolic and post-apostolic eras. On the contrary, it is when we appreciate the redemptive-historical lines of Luke's teaching in Acts that we are best poised to make rich and full application of Acts to our Christian lives. It is this conviction that informs the entirety of this exposition.