And so, as Pr. Bender perceptively pointed out some time ago, the very preaching of law and Gospel by which we are humbled and brought to faith in the first place is the exact same preaching by which we are kept humble and sustained in faith for the long haul.
So when the Mission Weenie from Corporate Headquarters tells you that what you're doing is FINE for "maintenance" but not at all good for "outreach," you might help him remember that God has only one net by which He catches men and scoops them up to life everlasting - which is communion with Him - and that net is the saving Gospel of Jesus Christ. There IS no other power of God for salvation but that message alone. Where it is proclaimed, there sinners are saved and are being saved; where something else is subbed for it (snappy music or cozy togetherness or Starbucks in the Narthex or praise babes making eyes at the praise dudes) what you've done is to throw away the only saving net there is. Not wise. Not wise at all.
The Augsburg Confessors knew this and knew it well. Hence they realize that the Office of the Ministry exists for purpose of speaking and sacramentally enacting that Word by which alone fallen human being are brought alive in faith and sustained in communion with God. That's what Article V is all about - and implicit throughout the recognition that God has no other net He's placed in our hands to use.