Acts 18:4-6

Young's Literal Translation

⁴ and he was reasoning in the synagogue every sabbath, persuading both Jews and Greeks.

⁵ And when both Silas and Timotheus came down from Macedonia, Paul was pressed in the Spirit, testifying fully to the Jews Jesus the Christ;

⁶ and on their resisting and speaking evil, having shaken [his] garments, he said unto them, `Your blood [is] upon your head -- I am clean; henceforth to the nations I will go on.'