How does God cleanse us from our sins?

God's cleansing of sin is accurately portrayed in Psalm 51, where David cries out for God to wash him and cleanse him from his iniquity. This points to the greater reality of Jesus Christ's atonement, whereby His blood purifies the sinner. Believers are assured that through faith in Christ, their sins are not only forgiven but are also removed completely, as depicted in Micah 7:19. The imagery used—casting sins into the depths of the sea—represents a complete and irreversible act of cleansing that only God can perform.