The old hymns have hidden truths. In the hymn “Rock of Ages,” there is a line that calls upon the blood of Christ to, “Be of sin the double cure; save me from its guilt and power.” What is the double cure? With regard to God we have two problems: First, we have broken God’s Laws and are liable for the law’s penalty. Second, we continue to sin. Because our problem is twofold, God’s grace must offer a double cure.
When a person believes in Jesus, they are justified – just-if-ied never sinned – which removes all punishment for our past sins. Secondly, the Holy Spirit enters the repentant sinner and begins the work of sanctification and regeneration. God, like a Physician, cures our sin disease and ends our continual spiritual corruption.
Sanctification and regeneration is an ongoing process in which the Christian becomes more and more separated from sin itself. It is a continual transformation of our inward character and our outward behavior. When we sin, we confess our sin, and Christ intercedes for us before God as our high priest. This is how we, “Grow in the grace and knowledge of our Lord and Savior Jesus Christ” (2Peter 3:18).
Jesus, what a savior,