The Lord did not stop Paul when he was persecuting the Christians in Jerusalem and even killed Stephen. He let Paul come to Damascus with the authority to bind and bring Christians to Jerusalem. Sometimes, the Lord miraculously saves some from persecution or tribulation as he took Peter out of the prison, and other times he does not stop Christians from being martyred as with the Apostle James and Stephen. When Jesus announced his coming passion to the disciples and Peter was against the idea, his word to Peter, "you do not have in mind the concerns of God, but merely human concerns,” reveals that his focus is in fulfilling God's will to save people from sin and death. And as he taught the disciples not to be afraid of "those who kill the body but cannot kill the soul," he sometimes does not save Christians from persecution. Jesus has still acted at "his hour" according to the Father's will.
When Jesus appeared to Paul, he simply asked why Paul persecuted him. It does not sound like a severe rebuke but a weak victim's cry. Jesus was gentle in dealing with Paul. After the encounter with Jesus, Paul was led into the city of Damascus and waited for instructions about what to do. Paul fasted for three days and nights, and Jesus told Ananias that Paul was praying. The Lord listened to his prayer. Before Paul was working for him, the Lord cared for him tenderly and closely. The Lord is such a good