“For I neither received it of man, neither was I taught it, but by the revelation of Jesus Christ.”
King James Version (KJV)
1:12 For neither did I receive it - At once. Nor was I taught it - Slowly and gradually, by any man. But by the revelation of Jesus Christ - Our Lord revealed to him at first, his resurrection, ascension, and the calling of the gentiles, and his own apostleship; and told him then, there were other things for which he would appear to him.
Ga 1:12 For I neither received it of man, neither was I taught [it]. It could not be of man, for it did not come to him from man. No preacher or apostle taught it to him. But by the revelation of Jesus Christ. It came by a direct revelation of Christ. The first revelation was on the way to Damascus (Ac 26:13-18). There were no doubt successive revelations (2Co 12:1).