What happens if you don't get the right understanding of the Church and how the Church is organized?
Aristotle wrote, "The least initial deviation from the truth is multiplied later a thousandfold." In other words, a small lie at the beginning may lead to a complete break with reality somewhere down the line.
Satan, therefore, tries to plant a small lie and over time lets it grow all the while man thinks he is doing the right thing or managing the problem as best he can when in reality the paradigm must shift and go back to the way it was originally intended.
The Church is defined in two ways: (a) universal born-again body of believers; (b) according to locality, e.g. church of Houston in the churches of Texas or the church of Antioch in the churches of Syria. Such is the account of every instance of the word "church" in the Scriptures.
It is not defined as a congregation of some denomination (denominations are outlawed in Scripture, for don't say "I of Cephas" or "I of Apollos" and don't even say "I of Christ" for that divides the body falsely also), nor is it defined even as an independent body of believers of some congregation. Congregationalism is most certainly false.
If someone asks you what church you belong to, tell them the church of your locality and give the name of your locality you reside in. You could further respond by saying you fellowship at a particular meeting place at someone's house, and provide the Elder of that meeting place as well as the Elder of your locality who approved of the Elder of your meeting place.
Do you know who the Apostle(s) - directly chosen by God - are for the churches of your state or region and the Apostle who appointed the Elder of your church locality? And are you aware whether or not the Elder of your meeting place has been approved by the Elder of your locality?