Paul is exhorting the Galatians that no matter how carefully they follow the Law or attempt to gain favor with God by good works – justification comes only through God’s grace by faith in Jesus Christ alone. This term “Justification by Faith” was declared by Martin Luther, and alone is the doctrine upon which the Protestant Reformation stands. Justification by Faith means we cannot be made righteous by what we do, for it is only through faith in Christ, not our goodness or good deeds that save us. (Romans 3:20) This faith that justifies is called living faith and is not some empty profession, but rather a personal trust that clings to Jesus as our Lord and Savior.