He shook his raiment — To signify he would from that time refrain from them: and to intimate, that God would soon shake them off as unworthy to be numbered among his people. I am pure — None can say this but he that has borne a full testimony against sin. From henceforth I will go to the Gentiles — But not to them altogether. He did not break off all intercourse with the Jews even at Corinth. Only he preached no more in their synagogue.
Related Commentaries of Acts 18:6
Acts 18:6
6 And when they opposed themselves, and blasphemed, he shook his raiment, and said unto them, Your blood be upon your own heads; I am clean: from henceforth I will go unto the Gentiles.