Why is it important for Christians to know they are redeemed by blood?

The concept of redemption by the blood of Christ is foundational to Christian faith. In Revelation 7:14, it emphasizes that those who stand before God are those who have washed their robes and made them white in the blood of the Lamb. This signifies full forgiveness and righteousness granted to believers. Such knowledge is crucial for Christians, as it assures them of their position in Christ and the security of their salvation. It is by His sacrifice that we are justified freely by His grace, meaning that our acceptance with God does not depend on our works but solely on Christ's atoning work.