What is the difference between forgiveness and justification?

Forgiveness and justification, while related, are distinct concepts in Christian theology. Forgiveness is the act of removing the guilt of sin, as demonstrated in Acts 13:38, where through Christ’s work, sins are forgiven. However, justification goes a step further; it is not only about the removal of guilt but also about declaring the believer to be righteous before God. This is based on the righteousness of Christ credited to the believer's account. Thus, through justification, believers are seen as having never sinned in God's sight, which is a profound truth of the Gospel that provides assurance and peace to all who believe.