Some Jews there incited people to oppose Paul and Silas.

Acts 17:5-9

5 But some leaders of the Jews there in Thessalonica became jealous because many people believed what Paul taught. So they went to the public square and persuaded some lazy men who were loitering there to follow them. In this way, the leaders of the Jews gathered a crowd and incited them to become noisy and start a riot against Paul and Silas. Those Jews and others ran to the house of a man named Jason. He was the man who had invited Paul and Silas to stay at his house. They wanted to bring Paul and Silas outside to where the crowd of people was waiting. 6 They discovered that Paul and Silas were not there, but they found Jason and grabbed him. They dragged him and some of the other believers to where the city officials/authorities and many other people were gathered. The men who had brought Jason shouted, “Those two men have caused trouble [IDM] everywhere [HYP] they have gone. Now they have come to our city, 7 and this fellow Jason invited them to stay at his house. All the people of this sect oppose what our Emperor has decreed. They say that another person, whose name is Jesus, is the real king!” 8 When the crowd of people that had gathered and the city authorities heard that, they became very angry and excited. 9 They wanted to put the believers in jail. But instead, the officials made Jason and the other believers pay a fine and told them that they would give the money back to them if Paul and Silas did not cause any more trouble. Then the authorities let Jason and those other believers go.