“Galatians unfolds as a fierce defense of the gospel: salvation comes by grace alone through faith alone in Christ alone. Paul confronts the creeping legalism of Judaizers who demanded circumcision and other works, insisting that adding any requirement nullifies Christ’s finished work. The law serves to reveal God’s holiness and human failure, but it never justifies; instead it drives sinners to the cross where the great exchange occurs—death to the old self and life in Christ. Once crucified with Christ, believers no longer live under the law’s condemnation but live by faith in the Son who loved and gave himself.”