So where are the great signs being preformed by Christians today?
Are you looking for signs? No sign will be give this wicked generation, except the sign of Jonah. - Jesus.
Seriously though, just as the mason builds boxing, for his concrete slab, but removes it after the cement hardens, the signs Jesus and his apostles performed served their purpose. Afterward, when the Christian congregation was established, and before the great apostasy, those signs were no longer necessary.
Paul's comments at 1 Corinthians 13:8-13 helps us appreciate that.
"Love never fails. But if there are gifts of prophecy, they will be done away with; if there are tongues, they will cease; if there is knowledge, it will be done away with. For we have partial knowledge and we prophesy partially, but when what is complete comes, what is partial will be done away with. When I was a child, I used to speak as a child, to think as a child, to reason as a child; but now that I have become a man, I have done away with the traits of a child. For now we see in hazy outline by means of a metal mirror, but then it will be face-to-face. At present I know partially, but then I will know accurately, just as I am accurately known. Now, however, these three remain: faith, hope, love; but the greatest of these is love."
Claims of someone else having had preformed great signs is not evidence.
Evidence for whom?
There were evidence for who lived at that time.
Do we have evidence we can believe the ones who wrote these things? That's where examining the evidence in the Gospels, the writings of Paul, and others, come in. As well as the external evidence supporting the Biblical texts, and the other evidence followers of Christ observe.
To give just one example... In fact I will give two, since two witnesses are better.
The "claims" the writers made, included Matthew 28:18-20, and matthew 24:14, as well as a number of other texts, such as John 15:17-19 ; 2 Timothy 3:12, 13 and perhaps hundreds of scriptures, give evidence of both the truthfulness, and reliability of those "claims". That evidence is clear.
Add that to the text at John 13:34, 35, and there is no doubt about other texts, including Galatians 5:19-23.
...and on, and on.
Evidence is where you can take something hand it off to anyone with no previous expectation of what the evidence points to and this other person comes up with the same conclusion.
Is that why detectives disagree, and juries, and forensic experts... because they have no evidence?
I think you redefined the word evidence, to mean something it does not mean.
Evidence is not determined by what individuals think.
Evidence is just the information, or data, sitting there doing nothing, and people examine it, and form conclusions, based on how they interpret that data.
More than one person may agree on something, while more than one person agrees on something different.