What biblical reasons are there to accept the scientific view of the earth as billions of years old?

I would just say the first. Noah’s Flood is more of an interpretation problem, i.e. it was a regional not a global flood.

I did, but will put it in-line here to be absolutely clear.

What do I consider those (your list of miracles) to be? A historical record of a miraculous event for which we can trust the record.

So are you saying there is no evidence at all in creation that it took longer than 144 consecutive hours? Or are you saying that if creation was a miracle we shouldn’t expect to find evidence that it did take more than 144 hours and anything we do find should not be trusted? Exactly what would you expect to see after a six day creation? A miracle for which the physical evidence still exists.

Did you ever take a look at these?
Antoine’s Treatment of Original Sin
Antoine’s theory about the flood

God could certainly have crated the earth supernaturally over 6 days. The problem then becomes explaining why He left all this evidence that says He didn’t. You want to make supernatural creation a magic wand that overcomes all problems but it doesn’t. Not when we have the results of that magic wand staring us in the face. Simple question, if God created in 6 days 6000 years ago how do you explain the size of the universe? Did he create it complete with a false history of it’s age?