Nehemiah only allowed people who could prove their genealogy come in to Jerusalem to live. This is important. Had everyone been allowed in, then there would have inevitably been issues with problematics. Instead of worshiping God in Spirit and in Truth, and remaining in obedience to God's law, they would have been arguing about side issues rather than building the city for the glory of God. In the church today, so many people come in and are welcome that do nothing but argue and wrangle over non-issues.
