Acts 19:39

But if you have any other inquiry to make, it shall be determined in the lawful assembly.

1. This may not be a legal matter, something the courts should hear. It may fall into the category of a complaint that the city council should hear.

2. Any complaint can be heard at the next called, regular meeting of the city council.

3. NOTE : The Greek word here is "ekklesia" - most often translated "church" in the New Testament. The word means a called out assembly. It is a gathering of people, calling them out of their homes, to meet at some scheduled place. In most places the word refers to the gathering together of Christians for worship. In talking about the communion, Paul said that "we come together as a church" in 1 Corinthians 11:18. It is a regular, called assembly. Here the word is used of a city council meeting. They meet regularly. If you have a complaint, come the next called, planned, regular meeting of the council. That is the proper forum, not a mob action.