How do we know that grace alone can change the heart?

The transformative power of grace is affirmed throughout the New Testament, particularly in Ephesians 2:8-9, which states, 'For by grace are ye saved through faith; and that not of yourselves: it is the gift of God.' This highlights that our salvation and divine transformation are not achieved through human effort but solely through the grace bestowed upon us by God. The inability of humanity to change their own hearts is a central tenet of Reformed theology, demonstrating that external circumstances, whether they be prosperity or suffering, do not alter the unregenerate heart.

Many examples in Scripture illustrate this truth. Even the most devastating trials cannot awaken a hardened sinner to God unless they are overridden by the life-giving grace of Christ. The reliance on grace emphasizes that true change and repentance are gifts from God, not products of our striving or circumstances. Thus, recognizing the necessity of grace for heart transformation is essential for all Christians as it leads to genuine conversion and ongoing sanctification.