But Saul increased all the more in strength, and confounded the Jews who lived in Damascus by proving that Jesus was the Christ.
22. And Saul waxed stronger. Luke doth not only in this place commend the bold zeal of Paul in confessing the faith of Christ, but also he telleth us that he had strong reasons to convince the Jews. He waxed strong, saith he, that is, he got the victory in disputation; his confession did carry with it great force and efficacy, “Vim et energiam conjunctam,” combined force and energy.
As for God, his work is perfect; if he begin, he will make an end: a good work was begun in Saul, when he was brought to Christ's feet, in that word, Lord, what wilt thou have me to do? And never did Christ leave any that were brought to that. Though Saul was sadly mortified when he lay three days blind, yet he was not abandoned.
Commenting on Acts 9:10-22
But Saul increased the more in strength,.... Not of body, but of mind; his gifts and graces, and spiritual light and knowledge increased; his abilities were greater; his fortitude of mind, boldness, and freedom of speech, every day increased: he got more, and new, and fresh arguments, by which he himself was confirmed, and he confirmed others in the truths of Christ.