How do we know Christ's blood redeems us?

Christ's blood redeems us through the concept of substitutionary atonement, being the perfect sacrifice for sin. In Hebrews 10:14, we are assured that 'by one offering, He has perfected forever those who are being sanctified.' This signifies that Christ, being fully God and fully man, provided a unique and complete atonement for sin. His blood was accepted by God because of its immeasurable value, allowing for eternal redemption for believers. This profound truth confirms that redemption is secured entirely through the blood of Jesus, distinguishing it from the futile efforts of human works.