With so much insistence in Galatians on our being right before God through faith in Christ and not by the works of the law, we might well wonder what is the purpose of the law.  In Galatians 3:15-29, Paul raised this question and gave a partial answer to it by laying out what is called the first use of the law.  As it turns out, the law is not against the gospel but in fact prepares us for and drives us toward faith in Christ.