It is understandable that the apostles were skeptical about the veracity of Paul’s conversion. He had to prove himself before they would allow him to participate in the ministry. In fact, there was so much distrust of Paul because of his past history that it required a personal testimony by Barnabas to convince the apostles that Paul was sincere in his conversion.
When Saul arrived in Jerusalem he tried to join the disciples,
but they were all afraid of him,
not believing that he was a disciple.
Then Barnabas took charge of him and brought him to the apostles,
and he reported to them how he had seen the Lord,
and that he had spoken to him,
and how in Damascus he had spoken out boldly in the name of Jesus.
He moved about freely with them in Jerusalem,
and spoke out boldly in the name of the Lord.
He also spoke and debated with the Hellenists,
but they tried to kill him.
And when the brothers learned of this,
they took him down to Caesarea
and sent him on his way to Tarsus.
Paul showed through his commitment to converting others to belief in Jesus that the apostles made the right decision in accepting him.
There is something about experiencing a real conversion of heart toward Jesus. While few of us have a history with as much baggage as Paul, many of us have experienced times of great doubt or even hostility to the faith. Our conversion to him draws us into a passionate desire to share the gospel.
From death comes life. From doubt comes faith. From fear comes love.