As he and his companions rode on, suddenly at mid-day a brilliant light shone round them, and Saul was laid prostrate in terror on the ground, a voice sounding in his ears, “Saul, Saul, why persecutest thou me?” The risen Saviour was there, clothed in the vesture of his glorified humanity. In answer to the anxious inquiry of the stricken persecutor, “Who art thou, Lord?” he said, “I am Jesus whom thou persecutest” (Acts 9:5; 22:8; 26:15).

This was the moment of his conversion, the most solemn in all his life. Blinded by the dazzling light (Acts 9:8), his companions led him into the city, where, absorbed in deep thought for three days, he neither ate nor drank (9:11). Ananias, a disciple living in Damascus, was informed by a vision of the change that had happened to Saul, and was sent to him to open his eyes and admit him by baptism into the Christian church (9:11–16). The whole purpose of his life was now permanently changed.

Immediately after his conversion he retired into the solitudes of Arabia (Gal. 1:17), perhaps of “Sinai in Arabia,” for the purpose, probably, of devout study and meditation on the marvellous revelation that had been made to him. “A veil of thick darkness hangs over this visit to Arabia. Of the scenes among which he moved, of the thoughts and occupations which engaged him while there, of all the circumstances of a crisis which must have shaped the whole tenor of his after-life, absolutely nothing is known. ‘Immediately,’ says St. Paul, ‘I went away into Arabia.’ The historian passes over the incident [comp. Acts 9:23 and 1 Kings 11:38, 39]. It is a mysterious pause, a moment of suspense, in the apostle’s history, a breathless calm, which ushers in the tumultuous storm of his active missionary life.” Coming back, after three years, to Damascus, he began to preach the gospel “boldly in the name of Jesus” (Acts 9:27), but was soon obliged to flee (9:25; 2 Cor. 11:33) from the Jews and betake himself to Jerusalem. Here he tarried for three weeks, but was again forced to flee (Acts 9:28, 29) from persecution. He now returned to his native Tarsus (Gal. 1:21), where, for probably about three years, we lose sight of him. The time had not yet come for his entering on his great life-work of preaching the gospel to the Gentiles.