What does the Bible say about conviction and repentance?

Conviction is the work of the Holy Spirit on the conscience of an individual, highlighting their sinfulness and need for redemption. In Luke 23:39-43, we see the dying thief being convicted of his sin and demonstrating true repentance, acknowledging his own guilt and recognizing Christ's innocence. This moment of conviction led him to confess his faith in Jesus, resulting in acceptance into paradise. Repentance is not merely an emotional response but is a heartfelt acknowledgment of sin, a turning away from it, and a heartfelt trust in Jesus Christ for salvation.