Galatians 1:10-14 ESV
For am I now seeking the approval of man, or of God? Or am I trying to please man? If I were still trying to please man, I would not be a servant of Christ. For I would have you know, brothers, that the gospel that was preached by me is not man’s gospel. For I did not receive it from any man, nor was I taught it, but I received it through a revelation of Jesus Christ. For you have heard of my former life in Judaism, how I persecuted the church of God violently and tried to destroy it. And I was advancing in Judaism beyond many of my own age among my people, so extremely zealous was I for the traditions of my fathers.