John Mark was the person who was at the center of the conflict between Paul and Barnabas. Paul did not want to take him on a missionary journey while Barnabas did. This disagreement led to Paul and Barnabas parting ways.
The uncle of John Mark is Barnabas, a figure mentioned in the New Testament. Barnabas was a companion of the apostle Paul on his missionary journeys.
I think John Mark left was because Paul was bodily ill which it says in Galatians 4:13 so i think Paul was afraid of catching this disease.
John Mark
Pamphylia (in modern day Turkey north-east from Cyprus) was where Mark left Paul and Barnabas.
It depends upon the journeys. the short answer is that over all the journeys Paul was accompanied by Peter, Barnabas, Timothy, Silas, John Mark (author of the Gospel of Mark) and Luke amongst others.
look at Acts 13:13 - 13 From Paphos, Paul and his companions sailed to Perga in Pamphylia, where John left them to return to Jerusalem.Mark is called John Mark so where it says John, it means John Mark - or Mark.He left them at Perga.
Saint Paul and Barnabas left Jerusalem for Antioch to deliver the letter from the Jerusalem Council, which clarified the requirements for Gentile believers. They were also appointed by the church in Jerusalem to share the decision with the believers in Antioch.
Initially it was Paul and Barnabas and Silas, but Barnabas wanted to bring John Mark, but Paul said no because John Mark had left them earlier. So Barnabas left with John Mark and Paul and Silas continued on. Timothy joins them later and Luke is also there.
Paul's traveling companions changed often. Some of the better-known men who accompanied him from time to time include Barnabas, John Mark, Silas, Luke, and Timothy. In his letters, Paul also mentions lesser-known companions such as Gaius and Aristarchus (Acts 19:29), and Epaphroditus (Philippians 2:25).
Barnabas took Paul and brought him to the apostles
Barnabas