How do we know that Paul was a chosen vessel by God?

God explicitly chooses Paul as a vessel to spread the gospel, as recorded in Acts 9:15, where Ananias is instructed to go to Paul, saying, 'he is a chosen vessel unto me.' This divine selection underscores Paul's role in the early church and his significant contributions to the gospel message. His transformation from a persecutor of Christians to a devoted apostle displays God's mercy and sovereignty, illustrating how God can redeem even the most unlikely individuals for His purposes. Paul's adaptive ministry shows that being chosen also involves preparing to suffer for the gospel, reinforcing his alignment with God's redemptive plan.