The first covenant that the Lord (Jehovah) made with the children of Israel after they were brought out of Egypt was a covenant of healing. The Lord said, “…if thou will diligently hearken to the voice of the Lord (Jehovah-Rapha, the Lord that healeth) thy God, and wilt do that which is right in His sight and will give ear to His commandments, and keep all His statutes, I will put none of these diseases upon thee, which I have brought upon the Egyptians; for I am the Lord that healeth thee” (Exodus 15:26).
Some translations read: “For I am Jehovah, thy physician”. He being our physician or doctor, we have the most capable doctor in the world. Our Lord Jesus Christ went about Galilee, preaching the Gospel of the Kingdom and healing all manner of sickness and disease among the people (Matthew 4:23-24).
“Jesus Christ the same yesterday and to day and for ever” (Hebrews 13:8).
The vicarious suffering of the Lord Jesus Christ paid for the healing of our bodies, the same as for the salvation of our souls, for “…with His stripes we are healed (Isaiah 53:5)”. Matthew 8:17 reads “…Himself took our infirmities and bare our sicknesses” (See also 1 Peter 2:24).
We see from this that divine healing for the body is in the atonement. This being true, then it is for all who believe. Jesus said of believers, “…they shall lay hand on the sick and they shall recover”. Later, James wrote in his Epistle to all churches: “Is any sick among you? Let him call for the elders of the church; and let them pray over him, anointing him with oil in the name of the Lord: and the prayer of faith shall save the sick, and the Lord shall raise him up; and if he have committed sins, they shall be forgiven him. Confess your faults one to another, and pray for one another, that ye may be healed. The effectual fervent prayer of a righteous man availeth much” (James 5:14-16).
All these promises are for the church today.