What in the world should the church be doing as we face a new millennium? Jesus' missionary mandate, which is a preview of the content of Acts, gives us the answer: You will be my witnesses . . . to the ends of the earth (1:8). The entire preface so undergirds and clarifies this command that we are led not only to the conviction that Acts must be viewed from a missionary perspective but to realize that we too must find our places in fulfilling that mandate, which is also a promise.