Timeline of Galatians and Peter's Epistles: Timing of the writings of Peter and Paul's writing of the book of Galatians? [2 Peter 3:15, Galatians, Acts 13-14, Matthew 24:14]. Peter's Vision-Clean vs Unclean: Can you clarify the chronology surrounding Peter's vision about clean and unclean foods? [Acts 10-15, Galatians 2:11-21].