In the letter to Galatians, Paul reaffirms his former teaching that the Mosaic Law is obsolete and that a return to Jewish practices would therefore be regressive. Though Christians have new freedom, they have no license to sin; rather, they assume a responsibility to live lives in accord with the Spirit of God.
The Galatians had “fallen from grace” and gone back under the law. This legalistic error is prevalent among Christians today. This error prevents believers from functioning as God intends them to and from rewards at the Judgment Seat of Christ.