Acts covers the 30 years following the ascension of Jesus and the success of the Spirit’s work through the spread of the Gospel throughout the world. The Gospel is the message of Jesus and what He did to bring salvation to the world of sinners. Christ came to save all people (as we saw in Luke) and that message is taken to all people (as we now see in Acts). The Spirit works through it to build His Church. Our summary verse is from Acts 4:12: “And there is salvation in no one else, for there is no other name under heaven given among men by which we must be saved.” – (ESV)

source https://burdenblessing.podbean.com/e/53-acts-summary-verse/