Who did Saul think was speaking to him on the Damascus road?
Saul assumed the voice and light from heaven belonged to Jehovah, the God of Abraham, the covenant God he thought he was serving. As a religious Jew, he recognized only one Lord, Jehovah, so he naturally concluded that Jehovah was speaking when he cried, "Who art thou, Lord?"
Les explains that Saul of Tarsus was a religious fanatic, and when he saw the intense light come from heaven and heard the voice from heaven, he immediately thought it was Jehovah. Les notes that to a religious Jew of Christ's day, there was only one Lord, and that was Jehovah, the God of Abraham. Saul thought he was serving the God of Abraham, Jehovah, so when this happened he cried out, "Who art thou, Jehovah?" or "Who art thou, Lord?" Les likes to think Saul naturally assumed the speaker was Jehovah, the God he knew intricately and thought he was serving.
More Questions
How close to Damascus was Saul when the light from heaven shone around him?
Saul was close to the outskirts of Damascus when the light shone around him, probably within a mile or two, though the exact distance is unknown.