Matthew.c.8.vs.16-17. That evening they brought to Him many who were possessed with demons and He cast out the spirits with a word and healed all who were sick. This was to fulfil what was spoken by Isaiah the prophet, "He took our infirmities and bore our diseases."

Everything Jesus did on the cross He did for us, so that we would not have to.
In order for evangelical christians to deny that physical healing is provided for in the atonement that Jesus made for us at calvary they must deny the integrity and the infallability of scripture. Isaiah when he wrote the words of his prophecy down was not expressing his own opinions, nor was he engaging in wishful thinking, but the words that he wrote down came from God Himself and God said "surely" this you can be certain of, you can bank on this. Well what was the prophet so sure of? "He took our infirmities and bore our diseases."The fact that Isaiah was writing down God's word is proved by Matthew's account of Jesu's ministry.
Jesus said "lo I have come to do Thy will o God as it is written of Me in the roll of life," and He healed the sick. The will of God and the word of God are the same you cannot separate them and God's will for man is as unchangeable as God is unchangeable.
God sealed His will in the precious blood of His own Son, where a will is concerned it is sealed and unchangeable with the death of the one who made it. Whether you say testament or covenant or God's will or God's word you are talking about the same thing.
The question arises then if Jesus took our infirmities and bore our sicknesses why are so many sick? the answer is simply that people do not believe it, and the reason that they do not believe it is because it is not announced or preached, faith cometh by hearing and hearing by the word of God, and when it is preached it is not preached with the same certainty as for example the forgiveness of sin, and no-one will deny that this is the more needful provision, but and yet the promise of God to heal are contained within the very same prophecy.
Jesus had no sin, He bore our sins.
Jesus had no sicknesses, He bore our sicknesses
He had no death only life, He took our death, He died for us in our place. But there's more to imputed righteousness than this, for a divine exchange takes place when we come to God through the cross-and this is no new message or revelation this is the old, old, story of God's redeeming love-. When He takes all that is wrong with us He imparts to us all that is right with Christ. God looks upon us as He looks upon His Son. In place of sickness and disease He imparts to us miracle healing, He bore our sorrows and carried our griefs when He died on the cross, now God imputes to us by a miracle His joy and His peace. He imparts to us the very life of Christ.

Come sincerely to God in prayer to recieve the blessing from Him.

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Lord Jesus I come believing

I ask for the great exchange to take place in my life

You will take my sins, I will take Your righteousness

I exchange my sicknesses for Your healing virtue

take away my death, so that I may have Your life in my soul

Grant for me to recieve Your joy and peace.

Let Your Holy Spirit come upon me now

as I recieve You as Lord. amen

Thank You Lord.