From Saul to Paul, Acts 9, NT S1:E150

Saul left Jerusalem with arrest warrants for anyone who followed, "the Way," of Jesus. Along the road, he was blinded by Jesus, the One Saul had been persecuting. Terrified and confused, Saul was converted, baptized and renamed Paul. He, who had been the Church's most aggressive opponent, became its most ardent proponent.