He (Vincent Donovan) explains, "I was to learn that any thoelogy or theory that makes no reference to previous missionary experience, which does not take that experience into account, is a dead and useless thing...praxis must be prior to theology...In my work [theology would have to proceed] from practice to theory. If a theology did emerge from my work, it would have to be a theology growing out of the life and experience of the pagan peoples of the savannahs of East Africa". Similarly, I have become convinced that a generous orthodoxy appropriate for our postmodern world will have to grow out of the experience of the post-Christian, post-secular people of the cities of the twenty-first century.
McLaren, A Generous Orthodoxy, p. 100
If the whole postmodern virus as it concerns religion could be summed up in one small phrase, a good one would be "praxis must be prior to theology".
Or to sum up in other words, "we have to do everything backwards".
We have to change the message of the Gospel to fit, so we think, the heathen peoples to whom we are suppose taking to Gospel to. We have to know what the people want so we can give it to them, rather then giving them what they need.
(and if you live in the country, tough bananas, pal, because they're only concerned about "the post-Christian, post-secular people of the cities of the twenty-first century"/.)
Instead of going to the Bible to see what message we should give to the heathen, we go to the heathen to see what message we should give to them.
Because Jesus said "Go into all the world, and get from them the gospel". Didn't he???
As someone who spent a few years in missions himself, I can only say that these men's ideas are hogwash.