DHK and Iconoclast have been doing a really good job in espousing the view which I share with them, so I've not contributed much. Here are some random observations:
Regarding Acts 20:28
Take heed therefore, unto yourselves, and all the flock, over which the Holy Spirit has made you overseers, to feed the church of God, over which he has made you overseers, which he hath purchased with his own blood.
Let's take this apart.
The flock over which the Holy Spirit had made the elders overseers, is, of course, the local congregation at Ephesus.
Paul urged them to feed THE church of of God. The one over which the Holy Spirit had made them overseers. The local church. At Ephesus.
This is the same church which Jesus purchased with his own blood. THE church. At Ephesus.
Paul used this same description in his letter to the Ephesian when he used an analogy between a husbands love for his wife and Christ's love for the Church (5:25)
Husbands, love your wives, even as Christ also loved the church, and gave himself for it
Not some universal invisible generic husband, but a real husband. And Christ loved THE church (Acts 20:28 feed THE church). Not some invisible entity, but a real specific church.
And Christ gave himself for it (Acts 20:28 purchased it with his own blood)
It is also worth nothing the Paul, in his first letter to the Corinthians used the same expression in his greeting
1:2 Unto THE church of God which is at Corinth.
This is the same congregation which Paul described as THE body of Christ.
12:28 Now YE are THE body of Christ....
This is the same body referred to in 12:13, a few verses earlier
In one spirit we are all baptized into THE BODY
This, by the way, is not Holy Spirit Baptism into the Universal Church. It is water baptism into the church at Corinth. The Greek
en is more properly translated IN, rather than BY.
Otherwise,we have two different bodies in same chapter, in which Paul draws no distinction. The body in v.13 is the same body in v.28
And finally, when we use generic terms such as jury, family...and church, we understand that such terms have no meaning without expressing themselves in a real jury, a real family and a real, functioning, preaching, baptizing, worshiping, fellowshipping, evangelizing church.
Sorry for the partial post earlier. Hit the wrong button. This is now complete.