“Except all of the observational evidence to the contrary, of course!
Were you there?”
Your question astounds me. Were you there when the Magna Carta was written? If not, how do you know that it was? Honestly, you really didn’t mean to ask that question, did you?
Yes I did.
Were you there to witness the creation?
If not then you did not observe it.
There may be some "circumstantial" evidence that could be utilized to support a different version of creation than the one recorded in Genesis, but there is no "observational" evidence. None. You were not there. I was not there. No one observed it, except God.
So I will again ask the simple question (the same question God asked Job in chapter 38):
Were you there?
Were you there when the Magna Carta was written?
No.
If not, how do you know that it was?
There is a record from the people who were there. Just as we have a record of the persons who were present at the creation. You choose to reject the eyewitness testimony of God in favor of the circumstantial evidence from people who were not.
The parallel to the Magna Carta doesn’t work. “Were you there?” is a perfect question. The only one present would have been the creator Himself, and He has left a record. One believes the record or one doesn’t.
In THAT record, the story says that the creation of heaven and earth was part of creation week.
That story could only be told by one Person. (note the capital “P”.)