What does it mean to repent according to the Bible?

In the context of Acts 2, repentance is the first step toward receiving the gift of the Holy Spirit and forgiveness of sins. Peter, addressing the crowd, instructed them to repent and be baptized, indicating that acknowledgment of one’s sins and a sincere turning to God are essential for salvation. This involves recognizing our guilt in the crucifixion of Christ, feeling contrition for our actions, and seeking His forgiveness. This response is both personal and relational, a heartfelt reaction to the conviction brought by the Holy Spirit, who acts in grace to draw us back to God.