Galatians 1:11-14

But I certify you, brethren, that the gospel which was preached of me is not after man. For I neither received it of man, neither was I taught it, but by the revelation of Jesus Christ. For ye have heard of my conversation in time past in the Jews' religion, how that beyond measure I persecuted the church of God, and wasted it: and profited in the Jews' religion above many my equals in mine own nation, being more exceedingly zealous of the traditions of my fathers.