From Cyprus, Paul and his companions sailed to Perga, in Pamphylia, on the southern coast of modern Turkey. Before they moved on to Pisidian Antioch, Luke reports two significant incidental changes: Image © Providence Collection Goodsalt.com Paul becomes the leading figure (up until here, Barnabas is always mentioned first) and Luke stops using Paul’s Jewish name (“Saul”) and starts referring to him only as “Paul” ( Acts 13:9 ) . This is probably because from now on Paul finds himself mostly in a Greco-Roman environment
Read more at the source: Monday: Pisidian Antioch – Part 1