Paul's letter to the churches in Galatia is arguably his most passionate defense of the Gospel in the face of false teaching. Judaizers were moving throughout Asia Minor teaching Gentiles believers that their salvation was incomplete until and unless they were circumcised and practiced the Law of Moses.
Paul knew this false teaching would rob Christians of their joy and liberty in Christ, but more importantly, Paul was concerned that these heretics would undermine the apostle's God-given authority to settle matters of doctrine for the church. So he writes this letter to re-establish authority, rebuke the false teachers and correct the churches in Galatia.
Our study in this letter completes our four-part study of false teaching in the epistles of Jude, Second & Third John and Galatians.