Galatians

The churches in Galatia were comprised of both Jewish and Gentile converts. Paul’s purpose in writing to these churches was to confirm them in the faith, especially concerning justification by faith alone, apart from the works of the Law of Moses.

Galatians was written because the churches of that region were facing a theological crisis. The essential truth of justification by faith rather than by human works was being denied by the Judaizers—legalistic Jews who insisted that Christians must keep the Mosaic Law. In particular, the Judaizers insisted on circumcision as a requirement for Gentiles who wished to be saved. In other words, convert to Judaism first, and then you are eligible to become a Christian. When Paul learned that this heresy was being taught to the Galatian churches, he composed an epistle to emphasize our liberty in Christ and to counter the perversion of the gospel that the Judaizers promoted.

References: https://www.gotquestions.org/Book-of-Galatians.html

Galatians Sermons