There is a very beautiful song which I love called "In Christ Alone" by Stuart Townend and Keith Getty. I listened to, sang and played this song often as I was undergoing cancer treatment. Cancer treatment is different from most other treatments in that in order to kill cancer cells they must in essence start to kill you. Anyone who has ever gone through or lived with someone going through cancer treatment knows exactly what I am talking about.
While I have heard it is not so bad for some people, I had dose-dense chemotherapy which means I was aggressively treated at two week intervals for 16 weeks rather than instead of the standard every three weeks for 18 weeks. I felt like I was dying, would gradually start to crawl out of the "pit" and just as I would start to pull myself out of it, I would get "kicked" in the face and tumble back into the pit again.
It sounds a lot like sin doesn't it? We get knocked down, try to pull ourselves out of the pit and then... wham! We can't pull ourselves out of that pit. No one else can either for they are trying to crawl out of their own personal pit!
In Christ alone! who took on flesh
Fullness of God in helpless babe!
This gift of love and righteousness
Scorned by the ones he came to save:
Till on that cross as Jesus died,
The wrath of God was satisfied -
For every sin on Him was laid;
Here in the death of Christ I live.
I do not know if there are renegade cancer cells in my body or if they have all been destroyed. Only time will tell. However, I am confident that the blood of Christ cleanses us from every sin.
For if the blood of bulls and goats and the ashes of a heifer, sprinkling the unclean, sanctifies for the purifying of the flesh,
how much more shall the blood of Christ, who through the eternal Spirit offered Himself without spot to God, cleanse your conscience from dead works to serve the living God? And for this reason He is the Mediator of the new covenant, by means of death, for the redemption of the transgressions under the first covenant, that those who are called may receive the promise of the eternal inheritance. Hebrews 9:13-15 (NKJV)
We can try all sorts of remedies for sin but the bottom line is nothing works except for the blood of Jesus which was freely given that we might be saved. Nothing. Let us never forget the price which was paid that we might live!