Mike Horton (MH): The Gospel can't be lived. It's the Law that's lived. We obey the commands that we find in Scripture, we do not—the Gospel is not anything for us to do. The Gospel is an announcement for us to take to the world, and on the basis of that Gospel we do live differently in the world, but that isn't itself the content of the Gospel: it is the effect of the Gospel.
Kim Riddlebarger (KR): I think you made a brilliant point. I know there will be a number of people who will hear us, who are familiar with us, and they'll say to themselves, "well, there they go, they've been on the air two minutes talking about the Great Commission, and they're back to Law and Gospel again!" But your point is absolutely spot-on: we believe the Gospel, we obey the Law—and if you are not clear about that, then you're going to go off on a mission and as you risk, as Jesus warned, making people more fit for Hell than they were before. If you're telling people that the Gospel is doing certain things, acting certain way, behaving in a certain way, then you're just accelerating their demise and decline.
Ken Jones (KJ): One of the Dangers associated with that is, if you talk about "living the Gospel," I think most evangelicals would acknowledge their own short-comings in various areas, so therefore their failure becomes a failure of the Gospel. It becomes the Gospel's failure. What they mean is we live in light of the Gospel, we live because of the Gospel . . .
MH: Rooted and grounded.
KR: . . . but they have to start saying that.
KJ: Yes, they do—they do. And the confusion is that, so that even when my life doesn't match up (which it seldom does—this is the on-going process of sanctification) that's no reflection on the Gospel.
MH: In fact, the Gospel is so great that it is the announcement of the perfect work of Christ which isn't diminished by my fails. It is exactly what I need in my failures, even my failures to live out the implications in response to the Gospel. It even covers my failures to do that! And as longs you have a Gospel that is perfect and complete, because it's about someone else, you can always get back up again after you fall and embrace that Gospel. It puts wind in your sails so that you can take it to the ends of the world even though you are a miserable sinner yourself.