Everything that is written in God's word is for our benefit and it has power unimaginable to do what it says. It is not about what someone says but what God says in his word.
The word profit not if we do not mix it with faith. it is faith that makes us see the unseen realities in God's word. In God is about believing to see and receive and not seeing before you believe. Our walk with God must be a faith walk.
Source
We must come to a point where we will have no doubts concerning what God says. If God has said in his word, then surely he is bound to do it. He is bound by his word let it prevail over every situation and all that it requires of us is to just activate our faith.
When the twelevr spies who went to survey the land of Canaan came, the brought an eveil report to isreal and made them murmur against God.
They paid heed to the ten spies who presented a negative report and as a result they all couldn't make it to the promise land, for they limited God's power.
The mere mention of giants on the land frightened them n made them give up on God. Those who believed in the report of Joshua and Caleb were those that made it to the promise land.
And they returned from searching of the land after forty days. And they went and came to Moses, and to Aaron, and to all the congregation of the children of Israel, unto the wilderness of Paran, to Kadesh; and brought back word unto them, and unto all the congregation, and showed them the fruit of the land. And they told him, and said, We came unto the land where you sent us, and surely it flows with milk and honey; and this is the fruit of it. Nevertheless the people are strong that dwell in the land, and the cities are walled, and very great: and moreover we saw the children of Anak there. The Amalekites dwell in the land of the south: and the Hittites, and the Jebusites, and the Amorites, dwell in the mountains: and the Canaanites dwell by the sea, and along the Jordan. And Caleb stilled the people before Moses, and said, Let us go up at once, and possess it; for we are well able to overcome it. But the men that went up with him said, We are not able to go up against the people; for they are stronger than we. And they brought up an evil report of the land which they had searched unto the children of Israel, saying, The land, through which we have gone to search it, is a land that eats up its inhabitants; and all the people that we saw in it are men of great stature. And there we saw the giants, the sons of Anak, who come of the giants: and we were in our own sight as grasshoppers, and so we were in their sight. Numbers 13:25-33
As Christians the only report we should believe is God's report. The doctors might have said something scary concerning your health but never let it eat you up.
They just did their job but the one that made you have a different report for you which says "by his strips we are healed!
Believe everything God has said in the his word and not everything you hear in the world.