How do we know the necessity of Christ's blood for forgiveness?

Scripture asserts the necessity of Christ's blood for the forgiveness of sins. In Hebrews 9:22, we read that without the shedding of blood, there is no remission. This implies that the sacrifice of Christ is not just significant; it is essential for our salvation. The blood of Jesus, described as innocent and without sin, provides complete atonement for all our sins. The futility of human attempts at righteousness is highlighted when we recognize that only the blood of Christ can effectively remove our guilt and deliver us from sin's penalty. Thus, we can confidently proclaim that our forgiveness hinges entirely on the shedding of Christ’s blood.