John 21:23-27

Therefore this account went out among the brothers, that that disciple would not die; yet Jesus did not say to him that he would not die, but only, “If I want him to remain until I come, what is that to you?”

This is the disciple who is testifying about these things and wrote these things, and we know that his testimony is true.

But there are also many other things which Jesus did, which, if they were written in detail, I expect that even the world itself would not contain the books that would be written.