26 With this Holy Spirit Paul also had been filled after his calling by our Lord Jesus Christ. Let godly Ananias come as a witness to what we say, he who in Damascus said to him, The Lord, even Jesus who appeared to you in the way which you came, has sent me, that you may receive your sight, and be filled with the Holy Ghost. And straightway the Spirit's mighty working changed the blindness of Paul's eyes into newness of sight; and having vouchsafed His seal unto his soul, made him a chosen vessel to bear the Name of the Lord who had appeared to him, before kings and the children of Israel, and rendered the former persecutor an ambassador and good servant—one, who from Jerusalem, and even unto Illyricum, fully preached the Gospel, and instructed even imperial Rome, and carried the earnestness of his preaching as far as Spain, undergoing conflicts innumerable, and performing signs and wonders. Of him for the present enough.
Source: Catechetical Lectures (New Advent)