What does the Bible say about being cleansed by the blood of Christ?

Zechariah 13:1 proclaims a fountain opened for the house of David and the inhabitants of Jerusalem for sin and uncleanness, symbolizing the cleansing power of Christ's blood. This metaphor signifies that through faith in Christ, believers receive forgiveness and are liberated from the dominion of sin. The cleansing by this fountain is comprehensive, addressing not just sin itself but the weight of sin’s penalty, allowing believers to live in grace and righteousness because Christ bore their sins on the cross.