Is Jesus Forgaving Paul's Credibility?

Although Paul claims he is “the least of the apostles”, he is still a valid source and maintains his credibility. Paul states, “For I am the least of the apostles, who am not worthy to be called an apostle, because I persecuted the church of God.” Paul is basically deeming himself unworthy to hold his title of apostle, therefore lowering his own credibility. However, we have all sinned against the church of God so is his credibility really lowered? Regardless, Jesus forgave Paul because he acknowledged and learned from his mistake by letting God change and lead his life. Therefore, when Paul speaks, we are really listening to God’s word not man’s word. Although Paul seems to lower his own credibility, God is using Paul as a vessel to spread
His word.