How do we know that grace is sufficient without the law?

The sufficiency of grace is a core tenet of Reformed theology, grounded in the belief that salvation is entirely by grace through faith in Jesus Christ. Paul argues in Galatians that attempting to achieve righteousness through the law is a futile endeavor, as grace alone assures our acceptance with God. This is critical because it shifts the focus from human effort to divine provision, showing that true righteousness comes from living in faith, not through the law. As believers, we understand that it is by resting in the finished work of Christ that we are freed from the law's demands and empowered to live in holiness.