Galatians 1:12

Nor was I taught it (oute edidacqhn). He did not receive it "from man" (para anqrwpwn, which shuts out both apo and dia of verse Romans 1 ), whether Peter or any other apostle, nor was he taught it in the school of Gamaliel in Jerusalem or at the University of Tarsus. He "received" his gospel in one way, "through revelation of Jesus Christ" (di apokalupsew Ihsou Cristou). He used parelabon in 1 Corinthians 15:3 about the reception of his message from Christ. It is not necessary to say that he had only one (because of the aorist active parelabon, from paralambanw, for it can very well be constative aorist) revelation (unveiling) from Christ. In fact, we know that he had numerous visions of Christ and in 1 Corinthians 11:23 he expressly says concerning the origin of the Lord's Supper: "I received (parelabon, again) from the Lord." The Lord Jesus revealed his will to Paul.