Where does Paul's doctrine for today come from?

Les explains that during Paul's revelations Jesus Christ was in glory, so everything Paul writes concerning our doctrine today is from the Ascended Lord, after His death, burial, and resurrection. Paul says he neither received it of man nor was taught it by man, but by revelation of the Lord Jesus Christ. Before the cross, Christ was not the object of faith to the main run of Gentiles, but once He finished the work of the cross and revealed His plan of salvation to this apostle, it became the gospel he preached to the Gentiles. Paul also says it pleased God, who separated him from his mother's womb and called him by His grace, to reveal Jesus the Son, so he might preach Him among the Gentiles. Paul did not immediately confer with flesh and blood or go up to Jerusalem.