The New Testament House Church and Its Worship
At the local level, the New Testament church was a house church; Christians met for worship in small groups in the homes of those members who might be wealthier or have larger houses. In a larger city, the church might meet in a number of house churches. In the New Testament, the word church may refer to the universal church, the church in a particular city, or the individual house church, which was part of the larger congregation.