Gálatas 1:9-13
As we have already said, so now I say again: If anybody is preaching to you a gospel other than what you accepted, let them be under God’s curse! Am I now trying to win the approval of human beings, or of God? Or am I trying to please people? If I were still trying to please people, I would not be a servant of Christ. I want you to know, brothers and sisters, that the gospel I preached is not of human origin. I did not receive it from any man, nor was I taught it; rather, I received it by revelation from Jesus Christ. For you have heard of my previous way of life in Judaism, how intensely I persecuted the church of God and tried to destroy it.
Galatians 1:9-13