True repentance goes hand in hand with faith in Jesus as our only Savior. Jesus frequently talked about the need to believe in Him in order to receive His blessings. If you can believe, all things are possible to him who believes (Mark 9:23, NKJV). Faith is essential if we are to be saved. Satan knows that, which is why He makes every effort to keep us from believing (Luke 8:12).
According to Jesus, what does it mean to believe ? It is more than a vague feeling that something will just happen. It is more than a mental exercise. Saving faith is not devoid of content. On the contrary, faith has a definite object: Jesus Christ. Faith is believing not only in something but, especially, in Someone. Faith is trusting in Jesus and His death for us. Believing in Jesus means knowing Him, understanding who He is (John 6:69), and receiving Him personally (John 1:12).
God so loved the world that He gave us Jesus, so that all who truly believe in Him will have eternal life. His death does not mean that everyone will be saved, however. We have to be covered by His righteousness. By believing in Him, we have righteousness, we have assurance, and we have the great promise that He will raise us up at the last day (John 6:40).
According to the Gospels, when Jesus healed some people, He said to them: Your faith has made you well (Matt. 9:22, Mark 10:52, Luke 17:19, NKJV). By saying these words, He was not assigning any healing power to their faith. Their faith was just a complete trust in Jesus’ power to heal them. The power of faith does not come from the person who believes but from the God in whom that person believes.
Why must we be very careful in how we understand the role of faith in regard to prayer, especially about healing? Why is it wrong to conclude from the above verses that if healing doesn’t come as we pray, it’s because we don’t have enough faith?