NET
5 So he said, “Who are you, Lord?” He replied, “I am Jesus whom you are persecuting!
Darby
5 And he said, Who art thou, Lord? And he [said], *I* am Jesus, whom *thou* persecutest.
KJV
5 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.”