A christian is a good citizen

Acts 19:32-41
Most of the crowd did not know why they were there.
The city clerk quieted the crowed and said to them. the courts are open and if there are proconsuls. They can press charges. In that case we would not be able to account for this commotion(騷動), since there is no reason for it. After he had said this, he dismissed the assembly.
The Asiarchs: Important officials responsible for maintaining order at religious functions.
The town clerk: The leading civic official, answerable to the Romans for such an illegal assembly.
Why?
Luke mentioned this event that he wanted to let people know preaching gospel does not against the city law, it is the right of man to know the truth.  Jesus Christ does not against the local culture.
It is freedom to preaching gospel in this country, so do it as I can.
In order to preach gospel we have to follow the law of nation and do the right and obligation of each member of this nation.
How?
To be a Christian and obey the law of this nation and do good the witness to the world.