How do we know God's grace is real?

The reality of God's grace can be seen in the dramatic transformation in the lives of believers, as illustrated by the Apostle Paul’s conversion on the Damascus Road (Acts 26:13-18). Paul, once a fierce persecutor of Christians, became a devoted witness for Christ after encountering Him. This transformative grace is not limited to dramatic experiences; it is also present in quieter awakenings, such as Lydia's heart being opened (Acts 16:14). The fact that they can testify of their changed hearts and lives is a strong evidence of God's grace working in their lives.