I have heard several people use the above passage, specifically the section I have emphasized, to justify the modern church gathering taking place in both large buildings and homes. Those who say this believe strongly that they are following the biblical model. After all, the early church we read about above met in a large building (the temple) and in homes.
There is a problem, however, with suggesting that this is the biblical model for us to follow. The problem is this: nowhere else to we see this model in action. What we see in the rest of the bible is the church meeting in homes only.
For example, as we read Paul's epistles, we see churches that met in homes. On Paul's journeys, he planted several churches. They didn't meet in large buildings. Paul never suggested that they construct a model of the Jerusalem temple or make any other sort of large meeting place. Paul knew that they could gather where people normally gather - homes.
The situation in Jerusalem, then, was a very unique one. The early church was a Jewish-Christian church. Therefore, they still went to the temple. However, once the church spread outside of Jerusalem, the new Christians met only in homes. There is no indication anywhere that they met together in large numbers in big buildings.
So, what can we take from this? Let us avoid taking one example (the Jerusalem church) and using it to apply to all churches. Instead, let us look at the broad picture to see where churches gathered together. It is clear that the home was the place.
I am not suggesting that if a modern church uses a large building it is sinning. However, I am saying that if a church today desires to follow the model set forth in scripture, it will meet exclusively in homes.