How often do we rush out of church after hearing the Sunday Sermon? Maybe we are hungry and want to hurry to the nearest chicken restaurant. Maybe we want to hurry home so that we can take our Sunday afternoon nap. Regardless of the reason, we are never in such a hurry that we cannot take time to talk to our brothers and sisters in Christ.
Near the end of his first epistle to the Thessalonians, Paul the apostle tells them that they are to greet all the brethren with a holy kiss. This was a matter of culture in Paul's day. Although it may be inappropriate to kiss all of our brothers and sisters in Christ, the principle is the same. A simple handshake and greeting work just as well in modern times.
Notice that Paul informs the Thessalonians to greet all of the brethren with a holy kiss. He did not say to only greet a few. Rather, every member of the assembly in Thessalonica was to be greeted with this holy kiss. If he were writing today, Paul would encourage us to shake the hand of every Christian that attends our church. At some churches, this would be very difficult. Don't worry, there's no pressure. From now on, though, we need to make it a point to talk to every fellow believer that we possibly can. After that, we should enjoy the community!