For I neither received it of man, neither was I taught it, but by the revelation of Jesus Christ.
All Commentaries on Galatians 1:12 Go To Galatians 1
John Chrysostom
AD 407
Those who are taught by men, when they have been vehement and hot in the opposite cause, require time and much ingenuity for their conversion. But he who was so suddenly converted and was rendered clean and sober at the very peak of his madness had obviously received a divine vision and teaching.