Similar to the Gospels, Acts is a narrative account of events told by a third party. It is not didactic* in nature like the Epistles. That does not mean that Acts is devoid of theology. We learn a lot about God in its pages. We learn the following in Acts:
- Christ's ascension and the promise of His visible return (1:9-11).
- Saul (Paul) was commissioned by Christ (9:1-19).
- The Gospel was commanded to be proclaimed to all people (Acts 10; 11:18).
While there is much to learn from the Book of Acts, it helps to keep in mind that Acts records events during a transitionary period between the Law and the inauguration of the New Covenant. There are events that occurred in Acts that were not normative for the New Testament church. For instance, there are no longer Apostles who can kill people for lying to the Holy Spirit as in Ananias and Saphira. Admittedly I am a Cessationist, so I believe the miracles and speaking in tongues are not normative for today. They were used during the early Apostolic age to establish the authority of the Apostle's message.
It is good practice not to develop doctrinal positions from Acts alone but to appeal to the whole written counsel of God, especially the didactic New Testament writings like those from Paul, Peter, James, and John.
I know many disagree with the points I have made in this post, and that is fine. I am interested in reading your comments.
*Intended to teach doctrine.