Acts 18:4-6

18:4 He addressed both Jews and Greeks in the synagogue every Sabbath, attempting to persuade them.

18:5 Now when Silas and Timothy arrived from Macedonia, Paul became wholly absorbed with proclaiming the word, testifying to the Jews that Jesus was the Christ. 18:6 When they opposed him and reviled him, he protested by shaking out his clothes and said to them, “Your blood be on your own heads! I am guiltless! From now on I will go to the Gentiles!”

Acts 18:28

18:28 for he refuted the Jews vigorously in public debate, demonstrating from the scriptures that the Christ was Jesus.