Is Christ's blood sufficient for salvation?

The sufficiency of Christ's blood is foundational to the doctrine of redemption. Hebrews 1:3 proclaims that Christ purged our sins and sat down at the right hand of God, signifying that His sacrifice was complete and accepted. The blood of Jesus cleanses from all sin as affirmed in 1 John 1:7, thus providing assurance of salvation to all who believe. The notion that Christ’s atonement requires human cooperation diminishes its sufficiency, as salvation is based solely upon His work and not dependent on our actions.