Read Acts 9:26 Using Other Translations
And when Saul was come to Jerusalem, he assayed to join himself to the disciples: but they were all afraid of him, and believed not that he was a disciple.
And when he had come to Jerusalem, he attempted to join the disciples. And they were all afraid of him, for they did not believe that he was a disciple.
When Saul arrived in Jerusalem, he tried to meet with the believers, but they were all afraid of him. They did not believe he had truly become a believer!