1. New churches best reach a) new generations, b) new residents, and c) new people groups. First (a) younger adults have always been disproportionately found in newer congregations. Long-established congregations develop traditions (such as time of worship, length of service, emotional responsiveness, sermon topics, leadership-style, emotional atmosphere, and thousands of other tiny customs and mores), which reflect the sensibilities of long-time leaders from the older generations who have the influence and money to control the church life. This does not reach younger generations. Second, (b) new residents are almost always reached better by new congregations. In older congregations, it may require tenure of 10 years before you are allowed into places of leadership and influence, but in a new church, new residents tend to have equal power with long-time area residents.
Last, (c) new socio-cultural groups in a community are always reached better by new congregations. For example, if new white-collar commuters move into an area where the older residents were farmers, it is likely that a new church will be more receptive to the myriad of needs of the new residents, while the older churches will continue to be oriented to the original social group. And new racial groups in a community are best reached by a new church that is intentionally multi-ethnic from the start. For example: if an all-Anglo neighborhood becomes 33% Hispanic, a new, deliberately bi-racial church will be far more likely to create 'cultural space' for newcomers than will an older church in town. Finally, brand new immigrant groups nearly always can only be reached by churches ministering in their own language. If we wait
until a new group is assimilated into American culture enough to come to our church, we will wait for years without reaching out to them.
[Note: Often, a new congregation for a new people-group can be planted within the overall structure of an existing church. It may be a new Sunday service at another time, or a new network of house churches that are connected to a larger, already existing congregation. Nevertheless, though it may technically not be a new independent congregation, it serves the same function.]
In summary, new congregations empower new people and new peoples much more quickly and readily than can older churches. Thus they always have and always will reach them with greater facility than long-established bodies. This means, of course, that church planting is not only for 'frontier regions' or 'pagan' countries that we are trying to see become Christian. Christian countries will have to maintain vigorous, extensive church planting simply to stay Christian!
2. New churches best reach the unchurched--period. Dozens of denominational studies have confirmed that the average new church gains most of its new members (60-80%) from the ranks of people who are not attending any worshipping body, while churches over 10 years of age gain 80-90% of new members by transfer from other congregations. This means that the average new congregation will bring 6-8 times more new people into the life of the Body of Christ than an older congregation of the same size.
So though established congregations provide many things that newer churches often cannot, older churches in general will never be able to match the effectiveness of new bodies in reaching people for the kingdom. Why would this be? As a congregation ages, powerful internal institutional pressures lead it to allocate most of its resources and energy toward the concerns of its members and constituents, rather than toward those outside its walls. This is natural and to a great degree desirable. Older congregations therefore have a stability and steadiness that many people thrive on and need. This does not mean that established churches cannot win new people. In fact, many non-Christians will only be reached by churches with long roots in the community and the trappings of stability and respectability.
However, new congregations, in general, are forced to focus on the needs of its non-members, simply in order to get off the ground. So many of its leaders have come very recently from the ranks of the un-churched, that the congregation is far more sensitive to the concerns of the non-believer. Also, in the first two years of our Christian walk, we have far more close, face-to- face relationships with non-Christians than we do later. Thus a congregation filled with people fresh from the ranks of the un-churched will have the power to invite and attract many more non-believers into the events and life of the church than will the members of the typical established body.
What does this mean practically? If we want to reach our city--should we try to renew older congregations to make them more evangelistic, or should we plant lots of new churches? But that question is surely a false either-or dichotomy. We should do both! Nevertheless, all we have been saying proves that, despite the occasional exceptions, the only widescale way to bring in lots of new Christians to the Body of Christ in a permanent way is to plant new churches.
To throw this into relief, imagine Town-A and Town-B and Town-C are the same size, and they each have 100 churches of 100 persons each. But in Town-A, all the churches are over 15 years old, and then the overall number of active Christian churchgoers in that town will be shrinking, even if four or five of the churches get very 'hot' and double in attendance. In Town-B, 5 of the churches are under 15 years old, and they along with several older congregations are winning new people to Christ, but this only offsets the normal declines of the older churches. Thus the overall number of active Christian churchgoers in that town will be staying the same. Finally, in Town-C, 30 of the churches are under 15 years old. In this town, the overall number of active Christian churchgoers will be on a path to grow 50% in a generation.
