And you disbelieve, which is to me a negative faith or a lack of faith in God... or?
I believe in the possibility, for Jesus said, that "for God all things are possible". Do you doubt Jesus' words or God's power? Must I have been witness to such a sinless person to believe in the power of God to accomplish it in someone?
Are we not to live by faith rather than by the proofs of our natural senses, the logic of our brains, or the scientific method of men?
"For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith." Rom 1:17
"Now faith is the substance of things hoped for, the evidence of things not seen." Heb 11:1
"Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed." John 20:29