St. Paul’s Belief in Christ - From St. John Chrysostom’s Homily 1 on Galatians

You observe how sedulously he affirms that he was taught of Christ, who Himself, without human intervention, condescended to reveal to him all knowledge. And if he were asked for his proof that God Himself thus immediately revealed to him these ineffable mysteries, he would instance his former manner of life, arguing that his conversion would not have been so sudden, had it not been by Divine revelation. For when men have been vehement and eager on the contrary side, their conviction, if it is effected by human means, requires much time and ingenuity. It is clear therefore that he, whose conversion is sudden, and who has been sobered in the very height of his madness, must have been vouchsafed a Divine revelation and teaching, and so have at once arrived at complete sanity. On this account he is obliged to relate his former life, and to call the Galatians as witnesses of past events. That the Only-Begotten Son of God had Himself from heaven vouchsafed to call me, says he, you who were not present, could not know, but that I was a persecutor you do know. For my violence even reached your ears, and the distance between Palestine and Galatia is so great, that the report would not have extended there, had not my acts exceeded all bounds and endurance.

Observe how he shrinks not from aggravating each point; not saying simply that he persecuted but beyond measure, and not only persecuted but made havoc of it, which signifies an attempt to extinguish, to pull down, to destroy, to annihilate, the Church.

To obviate the notion that his persecution arose from passion, vain-glory, or enmity, he shows that he was actuated by zeal, not indeed according to knowledge, Romans 10:2 still by a zealous admiration of the traditions of his fathers. This is his argument; — if my efforts against the Church sprung not from human motives, but from religious though mistaken zeal, why should I be actuated by vain-glory, now that I am contending for the Church, and have embraced the truth? If it was not this motive, but a godly zeal, which possessed me when I was in error, much more now that I have come to know the truth, ought I to be free from such a suspicion. As soon as I passed over to the doctrines of the Church I shook off my Jewish prejudices, manifesting on that side a zeal still more ardent; and this is a proof that my conversion is sincere, and that the zeal which possesses me is from above. What other inducement could I have to make such a change, and to barter honor for contempt, repose for peril, security for distress? None surely but the love of truth.