Acts 9:5 in the King James Version
And he said, Who art thou, Lord? And the Lord said, I am Jesus whom thou persecutest: it is hard for thee to kick against the pricks.
Context
4 He fell on the earth, and heard a voice saying to him, “Saul, Saul, why do you persecute me?”
5 He said, “Who are you, Lord?” The Lord said, “I am Jesus, whom you are persecuting.
6 But rise up and enter into the city, then you will be told what you must do.”