Why was Paul struck blind on the Damascus road?
Paul was struck blind physically so that he might see spiritually who Jesus really was. The One he had hated as an imposter and blasphemer revealed Himself as Jehovah, the God of Abraham, Isaac, and Jacob. The blinding forced the revelation that Jesus is the Jehovah of the Old Testament.
Les explains that Paul was speaking to the God of Abraham, Isaac, and Jacob, Jehovah, when he asked, 'Who art thou, Lord?' Jehovah answered, 'I am Jesus.' This confronted Paul because he hated and detested Jesus of Nazareth, regarding Him as an imposter and blasphemer. Les says this melded Paul like wax, and he fell to the ground blinded physically in order to see spiritually who Jesus really was—the God of Abraham, Isaac, and Jacob. Les connects this to the burning bush and John 8, where Jesus said, 'Before Abraham was, I am,' identifying Himself as the Jehovah of the Old Testament.