In the area around Laodicea there appears to be have been two groups of Christians meeting. Paul's epistle to believers in Colossae makes a direct reference to a church meeting in someone's home (Colossians 4:15). He then mentions "the church of the Laodiceans" (verse 16), which might have been a second fellowship group meeting in the area.
What did a Christian house look like?
What did the homes used by early Christians for worship look like? According to author Richard Krautheimer they were generally cheap homes. They were generally buildings that could house one family and could be as high as four stories. The houses contained a few simple pieces of furniture.
Church in the House
The Jerusalem church seems to have initially used their homes for food and to fellowship with one another. Luke states that "Day after day they met as a group in the Temple, and they had their meals together in their homes, eating with glad and humble hearts" (Acts 2:46). Later, church leaders used homes, besides the Temple, to help spread the gospel and encourage Christians in the way of God (Acts 5:42).
Before his conversion Saul (before he became Paul) persecuted believers. Luke tells us that Saul was so zealous that "entering house after house" (Acts 8:3) he not only arrested Christians put had them thrown in jail. Why did he do this? The answer is simple. Houses were where the early church met for fellowshipping and instruction in the Bible.
In the Spring of 44 A.D., during another wave of persecution, homes were still utilized for the purpose of assembling Christians together. We know this because the book of Acts tells us the church got together, when Peter was arrested and thrown in jail, to pray for him (Acts 12:1-5).
When Paul stayed in Corinth (Acts 17:11) for about a year and half he first started preaching in synagogues. When the Jews rejected him and his message he, as he always did, began to preach to Gentiles. He also began to stay in the house of a man named Titius. Soon, the house becomes the center of Paul's ministry in the city and a gathering place for new Christians.
Toward the end of his third missionary journey Paul meets in Miletus with elders from the Ephesus church (Acts 20:17). Witnessing to them regarding his integrity as a preacher he says "You know that I did not hold back anything that would be of help to you as I preached and taught in public and in your homes." (verse 20). The apostle preached in houses because that is where Christians met.
Subverting house fellowships
Paul, in a letter written directly to Titus in 63 A.D., warns him about self-willed men who teach false doctrine "For there are many . . . who rebel and deceive others with their nonsense. 11 It is necessary to stop their talk, because they are upsetting whole families ('houses' in the Greek) by teaching what they should not" (Titus 1:10-11). At the time Paul wrote there existed those who would literally go from house to house (fellowship to fellowship) on the Sabbath spreading their false doctrine. Timothy, Paul's trusted friend, also received a similar warning from him (2Timothy 3:5-6).
In his Second Epistle John instructs the host of a home fellowship to NOT let anyone in the door, especially during the time of worshipping God and learning from his word, that does not teach sound doctrine (2John 1:10).
After the death of Christ the early church or "ekklesia" met in small groups at someone's home. In the New Testament the Bible contains at least twenty-one references to fellowships meeting in someone's home. These gatherings of believers show us it is perfectly acceptable to meet in this fashion today.