Does God promise his people healing? Does the Holy Spirit provide healing power? Promises to Abraham are extended to Gentiles in the New Covenant (Gal 3:14). So we get all the same promises and more as believers. This includes all the blessings of the Old Covenant, such as prosperity, good health, and victory over enemies (Ex 23:25-26, Deut 7:12-15, Deut 28:1-14).