God is able to heal you!
God is able to heal every sickness known to mankind. No reasonable Christian can question this. Nothing is impossible for God. He is omnipotent -- able to do anything! He refers to himself as God Almighty. Here are some Scriptures declaring God's omnipotence:
If God was able to create the entire universe (including you!), surely he has the power to heal any physical problem you happen to have. The fact that Jesus healed all sickness and all diseases among the people should also be proof enough that God is able to do this.
Furthermore, upon the return of Jesus, God will instantly change your entire body from being mortal to being immortal. In the blink of an eye, every Christian on the planet will be instantly healed of every physical problem, and even that won't put any kind of power drain on God Almighty.
So there should be no question in your mind that God Almighty, maker of heaven and earth, is able to heal whatever condition you have now! If you believe that he is going to heal you completely when Jesus comes back, you surely believe that he is able to completely heal you now! This settles the question of God's ability to heal you.
God is willing to heal you!
But here is where most Christians stop short of their healing. They know that God is able to heal them, but they don't believe that God is willing to heal them. So in most cases, they don't even ask God to heal them, let alone ask in faith.
Only one person in Scripture questioned Jesus' willingness to heal. He knew that Jesus was able to do it, but he did not know if he was willing to do it. "If you are willing, you can make me clean." Read about this in the following passages:
Jesus' answer to the leper was, "I will." He never told anyone, "I won't." Since Jesus is the same today as he was then (
Hebrews 13:8), his answer to anyone with that question today must also be the same: "I will."
We know from Romans 2:11, Ephesians 6:9, and Colossians 3:25 that God does not play favorites. He treats everyone the same. In fact, we are told that we are sinning if we don't treat everyone the same (James 2:1-9, 1 Timothy 5:21).
Therefore, we know that God cannot possibly be willing to heal one person and not be equally willing to heal another, including you. However, God is fair to insist that you meet the same conditions as everyone else.
Is God willing to save everyone?
Healing is simply the physical benefit of salvation. God is willing to save everyone, with no exceptions. He is "not willing that any should perish, but that all should come to repentance" (2 Peter 3:9). God is both able and willing to save every person on earth.
Since the same atonement that provided salvation from hell is the same atonement that provides healing for your body, it is insane to think that God is willing to extend one benefit of salvation to everyone while withholding another benefit for some mysterious reason. (You will see in Isaiah's prophecy of redemption that healing is definitely provided in Christ's atonement.)
The fact that some people will spend eternity in hell has nothing to do with God's choice in the matter. Likewise, the fact that some people never get healed has nothing to do with God's choice in the matter. It is just as ridiculous to say that a person was not healed because God wouldn't heal him as it is to say that a person was not saved because God wouldn't save him.
God's ability + God's willingness + ? = Healing
So obviously the fact that God is able to do something and willing to do something does not mean that it gets done. There is a missing ingredient. That ingredient is your faith. When you believe that Jesus bore your sins and you receive his gift of salvation by faith, you have something that God was able and willing to give you all along. When you believe that Jesus bore your sicknesses and you receive his gift of healing by faith, you receive something that God has been able and willing to give you all along.
You do not need to work on God's end of things to get him to be willing to heal you. Do not beg, plead, cajole, pester, entreat or supplicate to try to make him be willing to heal you. He already is willing! Since he is both willing and able to heal you, you can receive healing from him.