During their first missionary journey, Paul and Barnabas traveled to several cities in the Roman provinces of Lycia and Galatia in southern Turkey. Over the previous centuries many Jews had been scattered to distant locations like southern Turkey, so this is why Paul and Barnabas were able to find audiences for their message about the Messiah in Jewish synagogues in these cities. Along the way, however, some of these Jews fiercely resisted their message and even persecuted them, but Paul and Barnabas were still able to establish churches in Antioch of Pisidia, Iconium, Lystra, and Derbe. Later, Paul, along with Silas, revisited these churches during his second and third missionary journeys to strengthen and encourage them. He also wrote the New Testament letter of Galatians to these churches to exhort them to hold firm to the gospel and not follow those who were teaching that righteousness can be achieved by obeying the law of Moses.