Paul decided to go to Jerusalem, he said, “I must visit Rome also

 Acts 19:21-41

After all this had happened, Paul decided to go to Jerusalem, passing through Macedonia and Achaia. “After I have been there,” he said, “I must visit Rome also.” He sent two of his helpers, Timothy and Erastus, to Macedonia, while he stayed in the province of Asia a little longer.

A silversmith named Demetrius, who made silver shrines of Artemi...When they heard this, they were furious and began shouting: “Great is Artemis of the Ephesians!” Soon the whole city was in an uproar. The people seized Gaius and Aristarchus, Paul’s traveling companions from Macedonia, and all of them rushed into the theater together. Paul wanted to appear before the crowd, but the disciples would not let him.

Therefore, since these facts are undeniable, you ought to calm down and not do anything rash. You have brought these men here, though they have neither robbed temples nor blasphemed our goddess. If, then, Demetrius and his fellow craftsmen have a grievance against anybody, the courts are open and there are proconsuls. They can press charges.

 In that case, we would not be able to account for this commotion, since there is no reason for it.” After he had said this, he dismissed the assembly.

Why?

Paul and his teaching made the silver dealers and makers afraid that people would turn to worship the Lord and no longer need the idols of silver. So they were furious about Paul and his disciples. They care only about their business.

Paul wanted to explain what the real God is, but under such a situation, his disciples would not let him go; it was dangerous for Paul.

How?

Paul is a great disciple of Jesus; he can make people turn to the Lord. Paul is a real good missionary of Jesus Christ.