Historical Context: This references the Biblical story (Acts 1-30) of the conversion of Saul to Christianity. Saul was on the road traveling to Damascus to extend his persecution of Christians. He was blinded by a brilliant light and heard the voice of Christ. He converted to Christianity and became the apostle Paul.
And when I helped you into it that afternoon, I felt like Saint Paul on the road to Damascus.
Stephen King -- Misery
It certainly was singular that the stoker of order, that the engineer of authority, mounted on the blind iron horse with its rigid road, could be unseated by a flash of light! that the immovable, the direct, the correct, the geometrical, the passive, the perfect, could bend! that there should exist for the locomotive a road to Damascus!
Victor Hugo -- Les Miserables
It’s just he’s been on the road to Damascus and he saw a great light and he’s got the blind staggers.
Robert Penn Warren -- All the King’s Men
And hear Paul, who had been Saul, a persecutor of the redeemed, struck down on the road to Damascus, and going forth to preach the gospel: ’And if ye be Christ’s, then ye are Abraham’s seed, and heirs according to the promise!’
James Baldwin -- Go Tell It on the Mountain
I slew two thousand with Samson and was blinded with St. Paul on the road to Damascus.
Stephen King -- The Gunslinger
But you see, I’ve always felt that Stephen’s death was the thing that occurred to Paul on the road to Damascus, and sent him to preach the word of Christ all over the world."
F. Scott Fitzgerald -- This Side of Paradise
But this operation was going to be more radical even than what happened to Saul on the road to Damascus.