And He said, “If you will give earnest heed to the voice of the Lord your God, and do what is right in His sight, and give ear to His commandments, and keep all His statutes, I will put none of the diseases on you which I have put on the Egyptians; for I, the Lord, am your healer.”
Most believers in Christ fall into two camps — People who believe in faith healers and people who believe that the gift of healing, along with others, like speaking in tongues, ceased at the end of the New Testament period. Just as God is not willing that any should perish but that all should come to repentance, God does not want or desire diseases for His children. Yet, both sin and disease exist. C.S. Lewis wrote about the Problem of Pain. How could a God of love allow pain? How could a God of love allow disease?
The purpose of disease is clearly laid out in God’s Word. Since all have sinned and come short of the glory of God. It is appointed unto man once to die, and after this the judgment. Sin and disease are part of this material existence. We are sinners both by birth and by choice. We have inherited the sin nature of Adam and we choose to sin. Disease can come simply through our sin nature because of choices other people made or because of choices we make. When a culture is obedient to the Word of God, that culture is freer from disease than that culture would be if it were disobedient.
It is not an issue of individuals but the principles by which the culture as a whole lives. They are not pushing people into poverty by government theft, they do not have sexual license but uphold marriage. Both poverty and sexual license result in more disease. People care about the conditions under which animals and food sources exist. They are not consumed by greed to the point of polluting food sources. Violating the principles of God’s Word has consequences, and one of these consequences is disease.
The purpose of divine healing by God in this generation is as a sign gift. It is to bring people to Himself. They must understand that even people who are healed are still going to die, and may still get other diseases. When Jesus healed people, it was a very small percentage of those who were sick, and he had a specific purpose in each one. In the days of King Ahab, a famine ravaged all of the people, but one woman was chosen to shelter Elijah and receive food. Many lepers lived in the days of Elisha, but only Namaan was healed. We must understand that our life is like a vapor. We certainly wish to be healed physically in this brief lifetime. All diseases can be a means to bring people to accept the Lord as Messiah. This is looking at the larger picture to see disease as a tool to bring people to repent of their sins. We must realize that life is brief and everything should be seen as a means to glorify God.
So God says if we obey Him that He wants us to be healed. What cause explains why disease and death still exist? Disease is a judgment on sin. Gehazi received the leprosy of Naaman as a judgment on his sin. All sins that we commit affect other people.
The ultimate result of sin will be the destruction of the heavens and the earth, after which we will see a new heaven and a new earth, free of disease. God will wipe away all tears from our eyes.