Acts 19:8-10 ESV “And he entered the synagogue and for three months spoke boldly, reasoning and persuading them about the kingdom of God. But when some became stubborn and continued in unbelief, speaking evil of the Way before the congregation, he withdrew from them and took the disciples with him, reasoning daily in the hall of Tyrannus. This continued for two years, so that all the residents of Asia heard the word of the Lord, both Jews and Greeks.”
As was his custom. Paul is in the synagogue and it seems that he was able to teach there for three months before controversy split the congregation. The text says that “some” did not believe— which means that some did believe. Many of these new disciples, both Jews and Greeks, undoubtedly first heard about Jesus in the synagogue. They would have already been familiar with Jewish customs and patterns of worship. They likely continued most of these customs in their new congregation.
Acts 19:21 ESV “Now after these events Paul resolved in the Spirit to pass through Macedonia and Achaia and go to Jerusalem,…”
In keeping with his Judaism, Jerusalem seems to be Paul's spiritual capital, his home base to which he regularly returns.