This seems like a literary device by a later author added to the story of Jesus.
Matthew 27:19: While Pilate was sitting in the judgment hall, his wife sent him a message: "Have nothing to do with that innocent man, because in a dream last night, I suffered much on account of him."
How would any Apostle or follower of Jesus know the contents of a private letter written to Pontius Pilate by his wife?
How many followers of Jesus were in the same room with Jesus and Pilate? Didn't all of them flee in terror including Peter?
Yet, we have a word-for-word account of that personal, private letter. Seems fishy to me.