Why is the blood of Christ necessary for salvation?

The necessity of Christ's blood is deeply rooted in the understanding of the covenant established by God. Hebrews 9:16-17 explains that a will or testament takes effect only after the death of the testator, demonstrating that the New Covenant was sealed by Christ's death. This covenant is essential for the redemption of sinners, allowing God's grace and the promise of eternal inheritance to be given to those He has called. The New Covenant stands in stark contrast to the conditional Old Covenant, providing us with assurance that our salvation is not based on our actions but on Christ's fulfilled work and His shed blood. This underlines the importance of His sacrifice for our salvation.