What was paul missionary journeys about?

A:Paul, in his own epistles, tells us nothing about the "first missionary journey", giving a quite different itinerary. Raymond E. Brown (An Introduction to the New Testament) says that the three journeys are only a convenient classification developed by students of Acts of the Apostles. Acts makes this journey an apprenticeship for Paul, under the guidance of Barnabas, whereas Paul himself says that he received the gospel from no man, and suggests that Barnabas was always his assistant. In this account it is also the occasion for an unethical miracle performed by Paul, who blinded bar-Jesus to prevent him influencing the Roman governor of Cyprus. This at least proves that Paul was able to perform miracles at will.