Paul moves on to Corinth and is reunited with Silas and Timothy. Again the Jews largely reject the message of Jesus, and Paul shakes out his garments to signify he will no longer actively attempt to persuade them. Normally Paul moves on to new locations after a rejection of the message, but God lets him know he is to stay and continue to preach. Paul stays for a year and a half before beginning to work his way home again.
Paul wasn’t successful with everyone he tried to reach, and neither are we. Some people are simply not open to hearing about Jesus. However, God will always create opportunities to reach others for Him.