Where does this design and model come from?

From descriptions of the church in the New Testament: It’s family, home, a community modeled by the early church with the potential for warmth and unity; even the first meeting places were homes

This model has been forsaken, as history shows us, and replaced with entertainment, a building, a ceremony, even just a 1-2X a week event. That can easily become an organization over an organism and have the potential for coldness and superficial growth. 

We don’t desire that. We desire to walk in and by the Spirit to change that. After all, if you know God through faith in Jesus Christ then Christ is in you and you are in Him. That’s gotta be different.