Evidence is not a word you understand. And you ignored entirely the point of my post.
Ok, well I can only go by what is recorded in the Bible, as that is the only place where I have seen what you suggested - a method to show the supernatural. We have three accounts of a healing miracle done by Jesus in the synagogue in front of the Pharisees. There is a man who has a paralyzed hand, which is described as withered. Jesus tells him to stretch it out and he does. The Pharisees are watching closely to see whether he'll heal on the Sabbath; so this miracle is verified by people without a vested interest as having taken place.
The three accounts corroborate each other as to the nature of the disease and the words spoken by Jesus.
I know someone who had a stroke and has a paralyzed hand. Many people have asked God to heal this person's hand but he has not done so. That's what I meant by God doing something supernatural but not repeating it on other occasions.
So the method is scientific in that it involves close observation and verification by unbiased witnesses who can testify that the man's hand went from paralyzed to normal, yet it isn't repeatable in the sense that scientific method would require.