9. You will waste your cancer if you treat sin as casually as before.

Are your besetting sins as attractive as they were before you had cancer? If so you are wasting your cancer. Cancer is designed to destroy the appetite for sin. Pride, greed, lust, hatred, unforgiveness, impatience, laziness, procrastination—all these are the adversaries that cancer is meant to attack. Don’t just think of battling against cancer. Also think of battling with cancer. All these things are worse enemies than cancer. Don’t waste the power of cancer to crush these foes. Let the presence of eternity make the sins of time look as futile as they really are. “What does it profit a man if he gains the whole world and loses or forfeits himself?” (Luke 9:25).

10. You will waste your cancer if you fail to use it as a means of witness to the truth and glory of Christ.

Christians are never anywhere by divine accident. There are reasons for why we wind up where we do. Consider what Jesus said about painful, unplanned circumstances: “They will lay their hands on you and persecute you, delivering you up to the synagogues and prisons, and you will be brought before kings and governors for my name’s sake. This will be your opportunity to bear witness” (Luke 21:12 -13). So it is with cancer. This will be an opportunity to bear witness. Christ is infinitely worthy. Here is a golden opportunity to show that he is worth more than life. Don’t waste it.

Remember you are not left alone. You will have the help you need. “My God will supply every need of yours according to his riches in glory in Christ Jesus” (Philippians 4:19).