We cannot overlook that Peter, and even Barnabas joined into this division within a church of fellow believers. They heard what the people from James had said, and then turned around and refused to eat with the gentiles. Peter had understood God’s decision to include gentiles in the story of salvation. And Peter had already had a meeting with Paul, James, and John about not needing to make gentiles follow the rules and regulations of their Jewish heritage. So this decision by Peter and Barnabas to fall into a pattern of excluding people is, as Paul says, based entirely in fear. Fear that he might be ridiculed, have his authority challenged, or have his leadership threatened.