Galatians 1:13–18 – Paul talks about his past as a zealous persecutor of the church, his dramatic conversion, and how he did not consult others right away but spent years in Arabia and Damascus before meeting the apostles.
Galatians 2:11–21 – Paul recounts confronting Peter for acting hypocritically by separating from Gentile believers. He emphasizes that people are justified by faith in Jesus Christ, not by following the law.