“But you will receive power when the Holy Spirit has come upon you, and you will be my witnesses in Jerusalem and in all Judea and Samaria, and to the end of the earth.” (Acts 1:8).
In their recently published book, What is the Mission of the Church?: Making Sense of Social Justice, Shalom, and the Great Commission, Kevin DeYoung writes:
The book of Acts is especially important because in it we can actually see the scope and nature of the earliest Christian mission. If you are looking for a picture of the early church giving itself to creation care, plans for societal renewal, and strategies to serve the community in Jesus’s name, you won’t find them in Acts. But if you are looking for preaching, teaching, and the centrality of the Word, this is your book. The story of Acts is the story of the earliest Christians’ efforts to carry out the commission given them in Acts 1:8.
DeYoung, Kevin. What Is the Mission of the Church?: Making Sense of Social Justice, Shalom, and the Great Commission (p. 49). Crossway. Kindle Edition.