That would depend on which passages are seen as Messianic.
Isa 53 is Messianic and insinuates atoning suffering and death and resurrection.
On the contrary, Isaiah 53 is about the Suffering Servant, the nation of Israel.
Psalm 22 shows details of what happened to Jesus when crucified.
Other way round. Psalm 22 was used by the author of Mark, and from Mark the others, to script his crucifixion scene. So were various other parts of the Tanakh.
Nobody denies Jesus is God. The gospels do affirm that He is the Son of God however.
Not quite nobody. Paul's Jesus, Mark's Jesus, Matthew's Jesus, Luke's Jesus and John's Jesus each expressly deny they're God, and never claim to be God. It would be rather silly if they made such a claim, since that would mean each was praying to himself ('If it be my will, let this cup pass from me' for instance), and the Jesuses of Mark and of Matthew would be saying on the cross, 'Me, me, why have I forsaken me?'
Instead they serve the Jewish God (though in the case of Paul and the author of John, a distinctly gnostic version of the Jewish God), and if there's one thing that's clear about the Jewish God, it's that [he]'s not triune.
The Bible evidence gives different accounts of the same events at the grave when Jesus rose and so they differ.
They don't just differ, they each baldly contradict the others. And none is by an eyewitness, none is contemporary within 20 years (Paul) and the first with any detail is Mark's, more than 40 years after the traditional date of the crucifixion; and none is an independent account.
There is enough in the accounts to see that Jesus died on the cross and rose again. No eye witness of Jesus actually coming back to life is going to make any difference to people who do not believe the stories.
We'll never know ─ there isn't one.
What you said shows you do not believe because it was miraculous.
That's a perfectly ordinary rule of history and historiography. If you acknowledge the reality of miracles by Christians, you must equally allow the miracles of Sumer, Babylon, Egypt, Greece, Roman, the Celts, the Norse, Wicca, of every religion in the world.
John's account was eye witness since John was an apostle.
We have no idea who wrote the gospels. The names were not added till later centuries.
Mark is supposed to have his account from Peter, an eye witness as John and Matthew were.
That's simply untrue. No gospel author ever met an historical Jesus or was present at the purported resurrection.
The evidence shows the 3 synoptic gospels were written between 25 and 30 years after Jesus died.
The evidence shows that the first gospel written was Mark and that Mark was written not earlier than 75 CE. I think I mentioned this before, but anyway, Mark's Jesus predicts the destruction of Jerusalem, which dates Mark later than 70 CE, and Mark's trial of Jesus is based on Josephus' account of the trial of Jesus of Jerusalem aka Jesus son of Ananias / Ananus in his
Wars, which didn't became available till around 75 CE.