From my reading in Acts 5:22-42 in the One Year New Testament.
Most people think the way they do church is the right way. There is a debate as to which form of church is better. Large churches or house churches. Luke gives us an example of some things the early church in Jerusalem did that were very successful.
“And every day, in the Temple and from house to house, they continued to teach and preach this message: “Jesus is the Messiah.” Acts 5:42
The temple was a large crowd setting. Houses were smaller. Preaching and evangelism were done in both settings. Now these preaching and teaching sessions were not necessarily churches but I think we can learn a valuable principle from this example.
As with many things in life, when it comes to large church vs. small church it is not necessarily an “either or” but “both and”. For example, a large group is not always practical or even legal in some countries. I believe that small churches and large churches have advantages.
Small churches are often more participatory, people can know pretty much everyone, and there is potential for deeper fellowship.
Large churches often have a lot of resources, can often reach many types of people, and have potential to start more churches.
Both are good. Many churches have been very successful at incorporating both large worship experiences and small group discussions.
Whatever your church does it is important to realize that there is more than one way to organize a church so don’t look down on other styles of church and learn what you can from others.