The answer is: Luke

Acts 1:1 / Luke 1:3 - showing Acts to be a subsequent work of Luke.

The Book of Acts is like a sequel to Luke's Gospel, making it pretty special in the New Testament. If you want to dive into the backstory of early Christianity, Acts is your go-to text! Luke, who was not one of the twelve apostles but was a physician, provides a detailed account focusing on how the Christian faith spread from Jerusalem to Rome.

What's fascinating is that Luke's writing style has a clear flair for storytelling. He opens Acts with an exciting little shout-out in Acts 1:1, linking it back to his Gospel – the same way a movie franchise coaxes fans to pick up the next installment. The allusions to Theophilus, the intended reader, show Luke’s goal to create an educated, reliable narrative that offers insight into this developing religious movement.

Trivia alert: Did you know that the Holy Spirit plays a pivotal role in Acts? The exhilarating Pentecost scene in Acts 2 features a remarkable outpouring of the Spirit that many Christians today celebrate as the birth of the Church. For many believers, this moment signifies direct divine guidance.

Plus, Acts doesn’t just focus on Peter but shifts gears to follow Paul. Their adventures highlight themes of inclusivity and the universal reach of spiritual wisdom. It’s like watching a journey unfold, where every stop along the way reveals new truths and challenges that early followers encountered.