The apostle Paul is in the midst of an explanation of the gospel of Jesus. He has explained how there are false brethren who are calling for the Gentile Christians to become circumcised and keep the Law of Moses in order to be saved and belong to the family in Christ. Paul has preached along with Peter, John, and James that this is not the case and is in violation of the gospel. However, Peter was found not walking in line with the gospel and acted hypocritically, along with many other Jewish Christians, which required a public confrontation. This brings Paul to the heart of the message of the gospel that he wants to teach the Galatians which is found in the end of chapter 2 and continues through chapter 3.
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