The Trellis and the Vine is an excellant book on the nature of what we are to be on about as disciples in a local church and so what we should be on about as a church. Go to the link; watch the review; buy the book and read it. You won’t regret it. It will give you a clear Biblical conviction of who disciples are and so what they are to be on about. Here’s the basic definition of ministry in summary form: “The prayerful speaking of one person to another.”