How do we know the blood of Christ is essential for salvation?

The Bible repeatedly emphasizes the necessity of Christ's blood for redemption. Hebrews 9:22 states, 'without the shedding of blood, there is no remission of sins.' Christ’s sacrificial death serves as the ultimate atonement, paying the debt of sin for believers. His blood cleanses us from all sin, representing the foundation upon which our salvation stands. This concept is also reflected in the sacrificial system of the Old Testament, where animal sacrifices pointed forward to the perfect sacrifice of Christ, whose blood not only atones but also secures eternal redemption for His people.