Accompanying the petition are vows of gratitude for God's mercy and promises for the future. Perhaps no other OT passage draws so clear a picture of the truly repentant sinner trusting in God's power to forgive and restore, as this portrait of David's experience of transgression. The SDA Bible Commentary , vol. Without it, God can do nothing to save us, not because the penalty for our sins hasn't already been paid but because repentance shows that we have realized our utter helplessness and need for God to save us. Repentance is, in many ways, sinners admitting their great need of God doing for them what they can never, in any way, do for themselves.
True repentance expresses a person's understanding of salvation by faith alone.
The first sin was not adultery, lust, or greed but self-exaltation and pride. According to Scripture, Peter's supernatural deliverance from prison was a direct result of the church's prayers. And if anyone did need prayer at that time, it was Peter. Despite the gloomy situation, Acts depicts Peter in prison doing something quite interesting. How interesting, too, that he seemed so astonished by this miracle.