A common misconception is that God's transformation of a person is a passive, miraculous overhaul that happens without their participation. This idea, however, overlooks the fundamental principle of free will that God has endowed to humanity. Scripture makes it clear that genuine change is not imposed but is initiated when an individual consciously surrenders their will to God. As Romans 12:1 urges, we are to actively offer ourselves as a "living sacrifice" as the means by which we are transformed.
This necessity of transformation is further clarified by considering the nature of Heaven. Heaven is a perfectly holy place, the dwelling of a holy God. Allowing unchanged, sinful humanity to enter would fundamentally compromise its perfect state. This brings us to the powerful story of the criminal on the cross, which is sometimes misunderstood. His last-minute plea—"Jesus, remember me when you come into your kingdom"—was far more than a simple request for rescue. It was a profound act of surrender, containing all the elements of a transformed heart: repentance, fear of God, and faith in Christ's lordship. Jesus’s response, “today you will be with me in paradise,” (Luke 23:43) does not contradict the need for holiness but rather demonstrates it. The criminal was not admitted as he was; his heart was instantly renewed through faith, making him a new creation in Christ (2 Corinthians 5:17) and fit for paradise. Thus, his story powerfully illustrates that while salvation is by grace alone, it always results in a transformed heart—the only kind that can enter a perfect Heaven.