Acts 5

13 Even today, many people feel uncomfortable around Christians, although they admire them for their loving natures and good works. Some people fear for their own reputations, while others are afraid that what Christians believe in might indeed be true. Others may desire to stay in their sinful lifestyle instead of giving it up for something better. It is frightening for anyone to give up the beliefs and practices they have always known once they find there is an ultimate truth.
14 Yet, despite the hesitancy of many, there were also many who realized that the truth that Christians proclaim is unlike anything they have ever know, and is more desirable to attain that staying in their current state. It is likely that these people came to know Christians on a personal level first through house ministries before they believed in Jesus and felt comfortable enough to join the larger public worship services.
42 The first Christians recognized that teaching and preaching were not actions to be done only on Sundays. Nor were they restricted to a church building. They met daily to encourage one another and explain Jesus to those who did not yet understand. There is not indication here that they only met with other Christians. It is likely that they were also telling their non-believing friends and neighbors about Christ as they shared their homes. The fact that they could meet with other people (both Christian and non-Christian) indicates that they established relationships with others. Sharing a meal was often a sign of a special relationship between people.