A Change of Heart
If our problem is really sin—a fundamental breach in human existence—then repentance, not self-improvement, is the first requirement. This is the biblical view of the foundations of morality. The prophets, John the Baptist, Jesus, and Paul all beckoned their hearers to a new life by calling them first to give up the old in repentance (Mark 1:15; Luke 13:3,5; Acts 26:20; Rom. 2:4; 2 Cor. 7:9-10). Repentance is the absolutely inescapable first step of the Christian moral life. Without repentance, the Christian moral life is impossible.
—Craig R. Dykstra, Vision and Character