Scholars think that the Jews and Greeks believed the message about Jesus. That is, Jesus was the one God had promised to send to save people from their sins.
When Luke wrote about Jews who were disobedient, he was speaking about Jews who refused to believe the message about Jesus. When Luke wrote that these Jews made the minds of the Gentiles “bitter”(κακόω/g2559) against the brothers, he meant the Jews turned the Gentiles away from believing the truth about Jesus.
Paul and Barnabas spoke boldly with the Lord’s power. That is, Paul and Barnabas spoke without being afraid of who might hear them. Scholars think that Jesus gave Paul and Barnabas power to keep on teaching and preaching.
The man had faith to be made well. Scholars think that Paul saw something and he knew the man believed in Jesus. They think the Holy Spirit helped Paul to know that the man believed Jesus was going to make him well.
In ancient times, some people worshipped the Greek gods. The king of the Greek gods was Zeus, and Hermes was the god who delivered messages to the people from Zeus. After the healing miracle, the people began to call Paul “Hermes” because he did most of the speaking. They also called Barnabas “Zeus”.
Scholars think Paul and Barnabas tore their clothes as a sign of strong disapproval of what the people wanted to do. Paul and Barnabas wanted the crowds to know that they were just men and that the actions of the crowd were blaspheming God.
When Paul urged the crowd to “turn from these useless things,” he wanted them to stop worshipping those things. Scholars think Paul was speaking about the idols because they had no power and were not real.
God allowed the nations to walk in their own ways. God allowed the Gentile nations to live in the way they wanted to live. That is, he allowed them to live without the Law of Moses. He allowed them to sin because they wanted to sin. The nations worshipped many things, but not the one true God.
Paul and Barnabas strengthened the souls of the disciples. Scholars think that Paul and Barnabas taught people about the Bible to remind the disciples about the truth about God and God’s promises. When they did this, Paul and Barnabas encouraged the disciples to make choices to trust God even when they were persecuted.
Scholars think Paul and Barnabas taught that many Christians will experience suffering and persecution while they are living in this present world. Jesus himself said, “In this world you will have tribulation” (see: John 16:33). They think that Paul and Barnabas meant that when Jesus returns to the earth to rule, Christians will no longer experience the world’s sufferings.
When they “entrusted”(παρατίθημι/g3908) the elders to the Lord, Paul and Barnabas committed the care of the elders to Jesus. That is, they asked Jesus to protect the elders as they served the growing number of Christians.
Paul and Barnabas were first committed to the grace of God for their work among the Jews and Gentiles beyond Antioch with prayer, fasting and the laying on of hands of the Christians in Antioch (see: Acts 13:2,3). That is, they were set apart to do the work to which God had called them.
When Luke wrote about a “door of faith for the Gentiles,” this was a metaphor. He was writing that God opened the hearts and minds of the Gentiles to understand the gospel and believe in Jesus.