(1-10) Paul Accepted by the Apostles
Paul was accepted by the other apostles when they saw that he preached the one true Gospel. The same God who called Peter to be an apostle is the same God who called Paul to be an apostle and He is the same God who calls you and me today to do our unique work for Him.
(11-14) Paul Opposes Peter
Back then, devoutly religious Jews thought it unclean to eat with Gentiles. Peter, who was a Jew, ate with the Gentiles because he knew it was no longer necessary to follow meaningless rites because of the work of Jesus on the cross. However, when devoutly religious Jews came around, Peter stopped eating with the Gentiles out of fear. This hypocrisy was not in line with the truth of the Gospel and Paul had to confront Peter about his behavior. The truth of the Gospel frees us to be one authentic way before all people. We can accept and love all races, cultures, and ethnicities despite our differences because we know that Christ also loves everyone and commands us to do the same.
(15-21) Justified by Faith
It is only by grace through faith in Jesus the Christ that we are saved. We cannot be justified by works of the law. Because our salvation is a work of grace and not a work of the law, we do not have to live out our faith on our own. All we have to do is die. It is now Christ who lives in us and works through, giving us His Holy Spirit power to live the life of faith. If we received salvation through works, the death of Christ would have been in vain and the entire Christian faith would be devoid of meaning and purpose.
Favorite verse: (20) I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me.