The historical fact is that words to that effect were written and subsequently translated. It's also a historical fact that this process of ideas => words => ideas is notoriously unreliable. That it is also recorded that Jesus prayed to God is evidence that the idea that Jesus is literally God Himself doesn't quite cover it. The totality of it is probably beyond our comprehension, much less our ability to reliably convey that idea with written word.
It’s also a historical fact that this process of ideas => words => ideas is notoriously unreliable.
***It is a historical fact that Julius Caesar said “veni vidi vici”. Historians don’t have trouble with these kinds of things, but persons with an ideological axe to grind certainly do have trouble with simple historicity. The same level of historicity goes for what Christ said before the sanhedrin and how they reacted. They properly condemned Him for blasphemy if He was not God Himself.