Question

What are the limitations of archaeology in general ?

Answer 1

When I was researching my Women of Genesis novels, I was amused by the authors who felt it necessary to declare, "The Biblical figure Abraham never existed." It was almost as if, to keep their respectability among scholars, they had to bear their non-testimony of the Bible.

Why was I amused? Because there are no written sources from the era of Abraham that could reasonably be expected to mention him. So the only source of information that could shed light on Abraham's era is archaeology.