Okay.
So, notwithstanding the prophecies dictating that the Messiah was to come from the House of David, here’s a seemingly unrelated question: how do you know that the Gospel of Matthew was written by the Apostle Matthew?
I absolutely don’t know that Matthew wrote Matthew. Most of the “Gospels” were were written in pseudonym 50 to 80 years after the resurrection . The only one that I accept as actual eye witness is John and even that is very shaky. I view the others as hearsay campfire legends but when you think about it all history is written hearsay — I have read war accounts in the civil war by women!! but that is ok as history if they are studied. Paul was never an eye witness to Christ. I personally believe that he was inspired by Jesus . I have grave questions about the rest — except John, Thanks for asking.