We know from the lessons appointed for the day that Paul came later to the Christian faith. His conversion was swift and life changing. He says himself in his letters that he became as zealous for Christ as he once was at persecuting the Church.
Paul became a standard bearer for Christians over the centuries and we can trace much of church doctrine and polity to Paul’s influence in the first century.
Here are a couple of readings to keep you amused-
O God, by the preaching of your apostle Paul you have caused the light of the Gospel to shine throughout the world: Grant, we pray, that we, having his wonderful conversion in remembrance, may show ourselves thankful to you by following his holy teaching; through Jesus Christ our Lord, who lives and reigns with you, in the unity of the Holy Spirit, one God, now and for ever. Amen.