Commentaries support the concept of house to house visitation in Acts 5:42 and 20:20, rather than church meetings in houses:[i]
“Every day, with great constancy and assiduity, both publicly and privately; in the temple, the place of public worship, where the Jews resorted on that account; and in each of their private houses . . . they ceased not to teach and preach Jesus Christ.” (An Exposition of the Old and New Testament, by John Gill, Acts 5:42)
“The apostles taught and preached not only publicly in the temple, but ‘from house to house.’ In this they give an example to the ministry of all ages, which is well worthy of imitation. Private instruction and admonition bring the teacher and the taught into closer contact, and secure an individuality of effect not attainable in a public assembly. It can not, therefore, be well dispensed with; but he who employs it most diligently will, other things being equal, employ his energies most successfully.” (Commentaries and Topical Studies by J. W. McGarvey, Acts 5:42)
“Though Paul preached in public, and though his time was much occupied in manual labour for his own support, Ac 20:34, yet he did not esteem his public preaching to be all that was required of him; nor his daily occupation to be an excuse for not visiting from house to house. We may observe here . . . that Paul’s example is a warrant and an implied injunction for family visitation by a pastor. If proper in Ephesus, it is proper still. If practicable in that city, it is in other cities. If it was useful there, it will be elsewhere. If it furnished to him consolation in the retrospect when he came to look over his ministry, and if it was one of the things which enabled him to say, ‘I am pure from the blood of all men,’ it will be so in other cases. . . . His aim was to show the way of salvation, and to teach in private what he taught in public. . . . while public preaching is the main, the prime, the leading business of a minister, and while his first efforts should be directed to preparation for that, he may and should find time to enforce his public instructions by going from house to house; and often he will find that his most immediate and apparent success will result from such family instructions.” (Barnes’ Notes, Acts 20:20)
“It is worth noting that this greatest of preachers preached from house to house.” (Robertson’s Word Pictures, Acts 20:20)
“Did an apostle, whose functions were of so wide a range, not feel satisfied without private as well as public ministrations? How then must pastors feel?” (Jamieson, Fausset, and Brown, Acts 20:20)
“From house to house. Else he had not been pure from their blood. For even an apostle could not discharge his duty by public preaching only. How much less can an ordinary pastor!” (Notes on the Old and New Testaments, John Wesley, Acts 20:20).
The specific illustrations in the book of Acts, given for the saints’ examples and admonition, in addition to the general exhortations found throughout the Bible, including the Old Testament (Proverbs 11:30, Daniel 12:3, etc.), to give the gospel to every creature, and the logical necessity, for those with a Christ-like love for the unconverted (John 3:16; cf. Romans 9:1-3), for aggressive evangelism because of the fact that all without Christ are headed to eternal torment, renders inexcusable the churches and all Christians not bedridden and crippled that do not go house to house in nations such as the United States, where the chances of imprisonment or martyrdom for such a labor of love are essentially non-existent—first century Rome heavily persecuted believers, yet house to house evangelism was still practiced by all members. Saints who do not aggressively evangelize grievously sin against God, hinder the sort of revival found in Acts, and apparently do not esteem the blood of Christ highly enough to simply inform others, in line with the Savior’s command, of the great salvation their professed Lord had to leave heaven and suffer infinitely to make possible.
[i] Commentators from Protestant denominations may believe that ministers can celebrate the “sacraments” private with only a few members of their “churches” present, but Baptists recognize that, as the church is the assembly, “private” meetings where baptism and the Lord’s supper are distributed to only a select few who are invited, are unbiblical, and corporate worship is something meet for the whole church. “House to house” does not, then, refer to “cell groups” or meetings of the ekklesia, the church, the assembly, where the members do not actually assemble.
Furthermore, Protestants that believe that only ministers were given the Great Commission and are responsible to preach the gospel may affirm that these text indicate that ministers should go house to house, and may try to explain the plainly evangelistic nature of the texts in question and the command to go to “every” house as a command to bring to salvation those, often essentially an entire community, baptized in infancy and thus part of their “church,” who are, despite this, plainly unconverted; Baptists, who maintain a regenerate church membership distinct from the community and the priesthood of every believer, and who properly recognize the Commission was given to the church and is the responsibility of her members as a whole, will learn from these texts that all church members should go “house to house” to “every house.” Acts 8:1, 4 indicate that all church members—not just the apostles or other leaders—were going out “every where” preaching the word (euangelidzo, evangelizing). Every member of the Lord’s church, unless paralyzed, etc., is responsible to go house to house. Speaking to friends, coworkers, and neighbors simply is not the teaching of Acts 8:4; 5:42; 20:20.
Of course, the fact that these passages teach that church members are to go house to house evangelizing the lost does not mean that they should not as well go to the homes of their fellow believers to strengthen them when they have needs, for discipleship Bible studies, etc.