Acts 19:8-10

8And he went into the synagogue and for three months spoke boldly, reasoning and arguing and persuading them about the kingdom of God.

9But when some were becoming hardened and disobedient [to the word of God], discrediting and speaking evil of the Way (Jesus, Christianity) before the congregation, Paul left them, taking the disciples with him, and went on holding daily discussions in the lecture hall of Tyrannus [instead of in the synagogue].

10This continued for two years, so that all the inhabitants of [the west coast province of] Asia [Minor], Jews as well as Greeks, heard the word of the Lord [concerning eternal salvation through faith in Christ].