How do we act when we are with others? Do we just try to fit in or do we stand up for the truth? Paul doesn’t shy away from correcting Peter. Peter was falling back into following the Law when he was with the Jews. Paul tells him that we are first of all sinners and that it is only through Christ that we are justified and not through the Law. It is not by works (observing the Law) but by faith in the blood of Christ that we are redeemed.
What an amazing message it is; grace is a gift freely given to us by Christ and he wants us to share this incredible and liberating message with the world. And unlike when we were under the Law, we now have the Holy Spirit dwelling within us. Our goal should be to share the love of Christ with others through words and deeds, because when you really think about it, this is a message too great to be hidden!