Gospel Challenge
Peter and Paul were brothers in Christ, and friends. They supported each other and encouraged one another’s ministry. However, Paul saw that Peter was at risk of undermining the gospel because he was afraid. Some Jewish believers thought that, in order to be fully accepted by God, the old Jewish rules (from animal sacrifice to circumcision) still had to be kept. They insisted that Gentiles must be circumcised; otherwise they could not be proper Christians. Initially, Peter taught that Christ had fulfilled all of the law and that those rules were now obsolete.