About noon as I came near Damascus, suddenly a bright light from heaven flashed around me.  I fell to the ground and heard a voice say to me, "Saul!  Saul!  Why do you persecute me?"  
"Who are you, Lord?" I asked. 
"I am Jesus of Nazareth, whom you are persecuting," he replied.
(Acts 22:6-8 -- NIV)