5 “Who are you, Lord?” Saul asked. “I am Jesus, whom you are persecuting,” he replied.

Read Acts 9:5 Using Other Translations

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.
And he said, "Who are you, Lord?" And he said, "I am Jesus, whom you are persecuting.
“Who are you, lord?” Saul asked. And the voice replied, “I am Jesus, the one you are persecuting!