How could he respond? His very mission was treachery to the church he established. The church that Christianity today is based on is treachery against the movement that Jesus started when he was on the scene and which continued through his brother James, then their cousin Simon, up through their split around 600 A.D. No church originated through Paul is of Jesus, but by a mythical Jesus stolen from Roman mythology. In answer to your question now, he responded through the same lies and teachings of a mythical Jesus that Christians carry on to this day.