Christ is worthy of witness. This is the formal and functional theme of Acts. The entire drama of the book traces the unfolding providence of the apostles bearing witness to Jesus as the Christ. The apostles are a unique and instrumental selection of eyewitnesses assigned to testify that Christ has died, that Christ is risen, and that Christ will come again. Many are the implications of these grand realities. Such are the teachings of the apostles. Whatever the apostles did or taught, their defining appointment was bearing witness to the glory of Christ. What is recorded in these pages is foundational to the church in every age, calling for a living and reverberating echo of the apostolic witness.