Preaching is like turning over a cold engine with a starting motor. Once the engine is running you don't need the starter anymore. Then it becomes a question of all the cylinders individually firing in the right order. The church of God, once established, is not meant to be preached at but rather to be taught in an interactive way. How else will every member become equipped to fulfill his/her function in the body?
Questions...
I take it that you mean the church of God or the Body of Christ is already established?
How do
we know when we are called to preach, we are preaching to the unconverted only, in an attempt to extend the Body of Christ? Ideally we want to just preach to the unconverted although do we really know it's not a mixed audience?
How do
we know when those who are called, that teaching interactively will equip every converted member to use his/her function to the benefit of Christ within the Body?
These functions are essentially gifts and affinities to do the work of Christ given by the Father. Who readily really knows what functions each other has been given, with the exception of the Father and Son?
These member functions are the application of the gifts and specific works given by the Father, through his Son to apportion.
The Body of Christ can only be sustained, functionally be improved and perfected in love, and extended by the influence and leadership of Father and the Son. Not by its members themselves.
I just do not see what is the real purpose of your thread. Or is it designed on purpose to be vague and to solicit questions?